A Series of Lessons in Gnani Yoga: The Yoga of Wisdom

Let us begin with the Protozoa, or one-celled forms—the lowest form of animal life. The lowest form of this lowest class is that remarkable creature that we have mentioned in previous lessons—the Moneron. This creature lives in water, the natural element in which organic life is believed to have had its beginning. It is a very tiny, shapeless, colorless, slimy, sticky mass—something like a tiny drop of glue—alike all over and in its mass, and without organs or parts of any kind. Some have claimed that below the field of the microscope there may be something like elementary organs in the Moneron, but so far as the human eye may discover there is no evidence of anything of the kind. It has no organs or parts with which to perform particular functions, as is the case with the higher forms of life. These functions, as you know, may be classed into three groups, i.e., nutrition, reproduction, and relation—that is, the function of feeding, the function of reproducing its kind, and the function of receiving and responding to the impressions of the outside world. All of these three classes of functions the Moneron performs—but with any part of its body, or with all of it.

Every part, or the whole, of the Moneron absorbs food and oxygen—it is all mouth and lungs. Every part, or the whole, digests the food—it is all stomach. Every part, or the whole, performs the reproductive function—it is all reproductive organism. Every part of it senses the impressions from outside, and responds to it—it is all organs of sense, and organs of motion. It envelops its prey as a drop of glue surrounds a particle of sand, and then absorbs the substance of the prey into its own substance. It moves by prolonging any part of itself outward in a sort of tail-like appendage, which it uses as a "foot," or "finger" with which to propel itself; draw itself to, or push itself away from an object. This prolongation is called a pseudopod, or "false-foot." When it gets through using the "false-foot" for the particular purpose, it simply draws back into itself that portion which had been protruded for the purpose.

It performs the functions of digestion, assimilation, elimination, etc., perfectly, just as the higher forms of life—but it has no organs for the functions, and performs them severally, and collectively with any, or all parts of its body. What the higher animals perform with intricate organs and parts—heart, stomach, lungs, liver, kidneys, etc., etc.—this tiny creature performs without organs, and with its entire body, or any part thereof. The function of reproduction is startlingly simple in the case of the Moneron. It simply divides itself in two parts, and that is all there is to it. There is no male or female sex in its case—it combines both within itself. The reproductive process is even far more simple than the "budding" of plants. You may turn one of these wonderful creatures inside out, and still it goes on the even tenor of its way, in no manner disturbed or affected. It is simply a "living drop of glue," which eats, digests, receives impressions and responds thereto, and reproduces itself. This tiny glue-drop performs virtually the same life functions as do the higher complex forms of living things. Which is the greater "miracle"—the Moneron or Man?

A slight step upward from the Moneron brings us to the Amoeba. The name of this new creature is derived from the Greek word meaning "change," and has been bestowed because the creature is constantly changing its shape. This continual change of shape is caused by a continuous prolongation and drawing-in of its pseudopods, or "false-feet," which also gives the creature the appearance of a "many-fingered" organism. This creature shows the first step toward "parts," for it has something like a membrane or "skin" at its surface, and a "nucleus" at its centre, and also an expanding and contracting cavity within its substance, which it uses for holding, digesting and distributing its food, and also for storing and distributing its oxygen—an elementary combination of stomach and lungs! So you see that the amoeba has taken a step upward from the moneron, and is beginning to appreciate the convenience of parts and organs. It is interesting to note, in this connection, that while the ordinary cells of the higher animal body resemble the monera in many ways, still the white corpuscles in the blood of man and the animals bear a startling resemblance to the amoebae so far as regards size, general structure, and movements, and are in fact known to Science as "amoeboids." The white corpuscles change their shape, take in food in an intelligent manner, and live a comparatively independent life, their movements showing independent "thought" and "will."

Some of the amoebae (the diatoms, for instance) secrete solid matter from the water, and build therefrom shells or houses, which serve to protect them from their enemies. These shells are full of tiny holes, through which the pseudopods are extended in their search for food, and for purposes of movement. Some of these shells are composed of secreted lime, and others of a flinty substance, the "selection" of these substances from the ether mineral particles in the water, evidencing a degree cf "thought," and mind, even in these lowly creatures. The skeletons of these tiny creatures form vast deposits of chalk and similar substances.

Next higher in the scale are the Infusoria. These creatures differ from the amoebae inasmuch as instead of pseudopods, they have developed tiny vibrating filaments, or thread-like appendages, which are used for drawing in their prey and for moving about. These filaments are permanent, and are not temporary like the pseudopods of the monera or amoebae—they are the first signs of permanent hands and feet. These creatures have also discovered the possibilities of organs and parts, to a still greater degree than have their cousins the amoebae, and have evolved something like a mouth-opening (very rudimentary) and also a short gullet through which they pass their food and oxygen—they have developed the first signs of a throat, wind-pipe and food-passage.

Next come the family of Sponges, the soft skeletons of which form the useful article of everyday use. There are many forms who weave a home of far more delicacy and beauty than their more familiar and homely brothers. The sponge creature itself is a slimy, soft creature, which fills in the spaces in its spongy skeleton. It is fastened to one spot, and gathers in its food from the water around it (and oxygen as well), by means of numerous whip-like filaments called cilia, which flash through the water driving in the food and oxygen to the inner positions of its body. The water thus drawn in, as well as the refuse from the food, is then driven out in the same manner. It is interesting to note that in the organisms of the higher animals, including man, there are numerous cilia performing offices in connection with nutrition, etc. When Nature perfects an instrument, it is very apt to retain it, even in the higher forms, although in the latter its importance may be dwarfed by higher ones.

The next step in the ascending scale of life-forms is occupied by the polyps, which are found in water, fastened to floating matter. The polyps fasten themselves to this floating matter, with their mouths downward, from the latter dangling certain tentacles, or thin, long arms. These tentacles contain small thread-like coils in contact with a poisonous fluid, and enclosed in a cell. When the tentacles come in contact with the prey of the creature, or with anything that is sensed as a possible enemy, they contract around the object and the little cells burst and the tiny thread-like coils are released and twist themselves like a loop around the object, poisoning it with the secreted fluid. Some of the polyps secrete flint-like tubes, which they inhabit, and from the ends of which they emerge like flowers. From these parent polyps emerge clusters of young, resembling buds. These bud-like young afterwards become what are known as jelly-fishes, etc., which in turn reproduce themselves—but here is a wonder—the jelly-fish lay eggs, which when hatched produce stationary polyps like their grandparent, and not moving creatures like their parents. The jelly-fishes have a comparatively complex organism. They have an intricate system of canal-like passages with which to convey their food and oxygen to the various parts. They also have something like muscles, which contract and enable the creature to "swim." They also possess a "nervous system," and, most wonderful of all, they have rudimentary eyes and ears. Their tentacles, like those of the parent-polyp, secrete the poisonous fluid which is discharged into prey or enemy.

Akin to the polyps are the sea-anemones, with their beautiful colors, and still more complex structure and organism, the tentacles of which resemble the petals of a flower. Varying slightly from these are the coral-creatures, which form in colonies and the skeletons of which form the coral trees and branches, and other forms, with which we are familiar.

Passing on to the next highest family of life-forms, we see the spiny-bodied sea-creatures, such as the sea-urchin, star-fish, etc., which possess a thick, hard skin, covered by spines or prickly projections. These creatures abound in numerous species. The star-fish has rays projecting from a common centre, which gives it its name, while the sea-urchin resembles a ball. The sea-lilies, with their stems and flowers (so-called) belong to this family, as do also the sea-cucumbers, whose name is obtained from their shape and general appearance, but which are animals possessing a comparatively complex organism, one of the features of which is a stomach which may be discarded at will and replaced by a new one. These creatures have a well defined nervous system, and have eyes, and some of them even rudimentary eyelids.

Ascending the scale of life-forms, we next observe the great family of the Annulosa, or jointed creatures, which comprises the various families of the worm, the crab, the spider, the ant, etc. In this great family are grouped nearly four-fifths of the known life-forms. Their bodies are well formed and they have nervous systems running along the body and consisting of two thin threads, knotted at different points into ganglia or masses of nerve cells similar to those possessed by the higher animals. They possess eyes and other sense organs, in some cases highly developed. They possess organs, corresponding to the heart, and have a well-developed digestive apparatus. Note this advance in the nutritive organism: the moneron takes its food at any point of its body; the amoeba takes its food by means of its "false-feet," and drives it through its body by a rhythmic movement of its substance; the polyp distributes its food to its various parts by means of the water which it absorbs with the food; the sea-urchin and star-fish distribute their food by canals in their bodies which open directly into the water; in the higher forms of the annulosa, the food is distributed by a fluid resembling blood, which carries the nourishment to every part and organ, and which carries away the waste matter, the blood being propelled through the body by a rudimentary heart. The oxygen is distributed by each of these forms in a corresponding way, the higher forms having rudimentary lungs and respiratory organs. Step by step the life-forms are perfected, and the organs necessary to perform certain definite functions are evolved from rudimentary to perfected forms.

The families of worms are the humblest members of the great family of the Annulosa. Next come the creatures called Rotifers, which are very minute. Then come the Crustacea, so called from their crustlike shell. This group includes the crabs, lobsters, etc., and closely resembles the insects. In fact, some of the best authorities believe that the insects and the crustacea spring from the same parent form, and some of the Yogi authorities hold to this belief, while others do not attempt to pass upon it, deeming it immaterial, inasmuch as all life-forms have a common origin. The western scientists pay great attention to outward details, while the Oriental mind is apt to pass over these details as of slight importance, preferring to seek the cause back of the outward form. On one point both the Yogi teachers and the scientists absolutely agree, and that is that the family of insect life had its origin in some aquatic creature. Both hold that the wings of the insect have been evolved from organs primarily used for breathing purposes by the ancestor when it took short aerial flights, the need for means of flight afterwards acting to develop these rudimentary organs into perfected wings. There need be no more wonder expressed at this change than in the case of the transformation of the insect from grub to chrysalis, and then to insect. In fact this process is a reproduction of the stages through which the life-form passed during the long ages between sea-creature and land-insect.

We need not take up much of your time in speaking of the wonderful complex organism of some of the insect family, which are next on the scale above the crustacea. The wonders of spider-life—the almost human life of the ants—the spirit of the beehive—and all the rest of the wonders of insect life are familiar to all of our readers. A study of some good book on the life of the higher forms of the insect family will prove of value to anyone, for it will open his or her eyes to the wonderful manifestation of life and mind among these creatures. Remember the remark of Darwin, that the brain of the ant, although not much larger than a pin point, "is one of the most marvelous atoms of matter in the world, perhaps more so than the brain of man."

Closely allied to the crustacea is the sub-family of the mollusca, which includes the oyster, clams, and similar creatures; also the snails, cuttle-fish, slugs, nautilus, sea-squirts, etc., etc. Some are protected by a hard shell, while others have a gristly outer skin, serving as an armor, while others still are naked. Those having shells secrete the material for their construction from the water. Some of them are fixed to rocks, etc., while others roam at will. Strange as it may appear at first sight, some of the higher forms of the mollusca show signs of a rudimentary vertebra, and science has hazarded the opinion that the sea-squirts and similar creatures were descended from some ancestor from whom also descended the vertebrate animals, of which man is the highest form known today on this planet. We shall mention this connection in our next lesson, where we will take up the story of "The Ascent of Man" from the lowly vertebrate forms.

And now, in closing this lesson, we must remind the reader that we are not teaching Evolution as it is conceived by modern science. We are viewing it from the opposite viewpoint of the Yogi Teaching. Modern Science teaches that Mind is a by-product of the evolving material forms—while the Yogi Teachings hold that there was Mind involved in the lowest form, and that that Mind constantly pressing forward for unfoldment compelled the gradual evolution, or unfoldment of the slowly advancing degrees of organization and function. Science teaches that "function precedes organization," that is, that a form performs certain functions, imperfectly and crudely, before it evolves the organs suitable for the functioning. For instance the lower forms digested food before they evolved stomachs—the latter coming to meet the need. But the Yogi Teachings go further and claim that "desire precedes function," that is, that the lowly life form "desires" to have digestive apparatus, in order to proceed in the evolutionary scale, before it begins the functioning that brings about the more complex organism. There is ever the "urge" of the Mind which craves unfoldment, and which the creature feels as a dim desire, which grows stronger and stronger as time goes on. Some yield more readily to the urge, and such become the parents of possible higher forms. "Many are called, but few are chosen," and so matters move along slowly from generation to generation, a few forms serving to carry on the evolutionary urge to their descendants. But is always the Evolutionary Urge of the imprisoned Mind striving to cast aside its sheaths and to have more perfect machinery with which, and through which, to manifest and express itself? This is the difference between the "Evolution" of Modern Science and the "Unfoldment" of the Yogi Teachings. The one is all material, with mind as a mere by-product, while the other is all Mind, with matter as a tool and instrument of expression and manifestation.

As we have said in this lesson—and as we shall point out to you in detail in future lessons—accompanying this evolution of bodies there is an evolution of "souls" producing the former. This evolution of souls is a basic principle of the Yogi Teachings, but it is first necessary that you acquaint yourselves with the evolution of bodies and forms, before you may fully grasp the higher teachings.

Our next lesson will be entitled "The Ascent of Man," in which the rise of man—that is, his body—from the lowly forms of the vertebrates is shown. In the same lesson we shall begin our consideration of the "evolution of souls." We trust that the students are carefully studying the details of each lesson, for every lesson has its part in the grand whole of the Teachings.

THE EIGHTH LESSON
THE ASCENT OF MAN

In our last lesson we led you by successive steps from the beginnings of Life in living forms up to the creatures closely resembling the family of vertebrates—the highest family of living forms on this planet. In this present lesson we take up the story of the "Ascent of Man" from the lowly vertebrate forms.

The large sub-family of forms called "The Vertebrates" are distinguished from the Invertebrates by reason of the former possessing an internal bony skeleton, the most important feature of which is the vertebra or spinal column. The vertebrates, be it remembered, possess practically the same organs as the lower forms of life, but differ from them most materially by the possession of the internal skeleton, the lower forms having an external or outside skeleton, which latter is merely a hardening of the skin.

The flexibility of the vertebra creates a wonderful strength of structure, combined with an ease of movement peculiar to the vertebrates, and which renders them the natural forms of life capable of rapid development and evolution. By means of this strength, and ease, these forms are enabled to move rapidly in pursuit of their prey, and away from their pursuers, and also to resist outside pressure or attack. They are protected in a way similar to the invertebrates having shells, and yet have the additional advantage of easy movement. Differing in shape and appearance as do the numerous members of the sub-family of vertebrates, still their structure is easily seen to spring from a single form—all are modifications of some common pattern, the differences arising from the necessities of the life of the animal, as manifested through the desire and necessities of the species.

Science shows the direct relationship between the Vertebrates, and the Invertebrates by means of several connecting-links, the most noticeable of which is the Lancelot, a creature resembling the fish-form, and yet also closely resembling the lower (invertebrate) forms of life. This creature has no head, and but one eye. It is semi-transparent, and possesses cilia for forcing in the water containing its food. It has something like gills, and a gullet like the lower forms. It has no heart, the blood being circulated by means of contracting vessels or parts. Strictly speaking, it has no back-bone, or vertebra, but still Science has been compelled to class it among the vertebrates because is has a gristly cartilage where the back-bone is found in the higher forms. This gristle may be called an "elementary spine." It has a nervous system consisting of a single cord which spreads into a broadened end near the creature's mouth, and which may therefore be regarded as "something like a brain." This creature is really a developed form of Invertebrate, shaped like a Vertebrate, and showing signs of a rudimentary spine and nervous system of the latter. It is a "connecting-link."

The lowest forms of the true Vertebrates are the great families of Fishes. These Fish families include fishes of high and low degree, some of the higher forms being as different from the lowest as they (the highest) are different from the Reptile family. It is not necessary to go into detail regarding the nature of the fish families, for every student is more or less familiar with them.

Some peculiar forms of fish show a shading into the Reptile family, in fact they seem to belong nearly as much to the latter as to their own general family. Some species of fish known as the Dipnoi or "double-breathers," have a remarkable dual system of breathing. That is, they have gills for breathing while in the water, and also have a primitive or elementary "lung" in the shape of an air-bladder, or "sound," which they use for breathing on land. The Mud-fish of South America, and also other forms in Australia and other places, have a modification of fins which are practically "limbs," which they actually use for traveling on land from pond to pond. Some of these fish have been known to travel enormous distances in search of new pools of water, or new streams, having been driven from their original homes by droughts, or perhaps by instincts similar to the migrating instinct of birds. Eels are fish (although many commonly forget this fact) and many of their species are able to leave the water and travel on land from pond to pond, their breathing being performed by a peculiar modification of the gills. The climbing perch of India are able to live out of water, and have modified gills for breathing purposes, and modified fins for climbing and walking. So you see that without leaving the fish family proper, we have examples of land living creatures which are akin to "connecting links."

But there are real "connecting-links"' between the Fish and the Reptiles. Passing over the many queer forms which serve as links between the two families, we have but to consider our common frog's history for a striking example. The Tadpole has gills, has no limbs, uses its tail like a fish's fin, eats plants, etc. Passing through several interesting stages the Tadpole reaches a stage in which it is a frog with a tail—then it sheds its tail and is a full fledged Frog, with four legs; web-feet; no tail; and feeding on animals. The Frog is amphibious, that is, able to live on land or in water—and yet it is compelled to come to the surface of the water for air to supply its lungs. Some of the amphibious animals possess both lungs and gills, even when matured; but the higher vertebrates living in the water breathe through lungs which are evolved from the air-bladder of fishes, which in turn have been evolved from the primitive gullet of the lower forms. There are fishes known which are warm-blooded. Students will kindly remember that the Whale is not a fish, but an aquatic animal—a mammal, in fact, bringing forth its young alive, and suckling it from its breasts.

So we readily see that it is but a step, and a short step at that, between the land-traveling and climbing fishes and the lower forms of Reptiles. The Frog shows us the process of evolution between the two families, its life history reproducing the gradual evolution which may have required ages to perfect in the case of the species. You will remember that the embryo stages of all creatures reproduce the various stages of evolution through which the species has passed—this is true in Man as well as in the Frog.

We need not tarry long in considering the Reptile family of living forms. In its varieties of serpents, lizards, crocodiles, turtles, etc., we have studied and observed its forms. We see the limbless snakes; the lizards with active limbs; the huge, clumsy, slow crocodiles and alligators—the armor-bearing turtles and tortoises—all belonging to the one great family of Reptiles, and nearly all of them being degenerate descendants of the mighty Reptile forms of the geological Age of Reptiles, in which flourished the mighty forms of the giant reptiles—the monsters of land and water. Amidst the dense vegetation of that pre-historic age, surrounded by the most favorable conditions, these mighty creatures flourished and lived, their fossilized skeleton forms evidencing to us how far their descendants have fallen, owing to less favorable conditions, and the development of other life-forms more in harmony with their changed environment.

Next comes the great family of Birds. The Birds ascended from the Reptiles. This is the Eastern Teaching, and this is the teaching of Western Science It was formerly taught in the text-books that the line of ascent was along the family of winged reptiles which existed in the Age of Reptiles, in the early days of the Earth. But the later writers on the subject, in the Western world, have contradicted this. It is now taught that these ancient winged-reptiles were featherless, and more closely resembled the Bat family than birds. (You will remember that a Bat is neither a reptile nor a bird—it is a mammal, bringing forth its young alive, and suckling them at its breast. The Bat is more like a mouse, and its wings are simply membrane stretched between its fingers, its feet, and its tail.)

The line of ascent from Reptile to Bird was along the forms of the Reptiles that walked on land. There are close anatomical and physiological relations and correspondences between the two families (Reptiles and Birds) which we need not refer to here. And, of course, many modifications have occurred since the "branching-out." The scales of the reptiles, and the feathers of the birds, are known to be but modifications of the original outer skin, as are also the hair, claws, hoofs, nails, etc., of all animals. Even teeth arose in this way, strange as it may now seem—they are all secreted from the skin. What a wonderful field for thought—this gradual evolution from the filmy outer covering of the lowest living forms to the beautiful feathers, beaks, and claws of the bird!

The evolving of wings meant much to the ascending forms of life. The Reptiles were compelled to live in a narrow circle of territory, while the Birds were able to travel over the earth in wide flights. And travel always develops the faculties of observation, memory, etc., and cultivates the senses of seeing, hearing, etc. And the creature is compelled to exercise its evolving "thinking" faculties to a greater extent. And so the Birds were compelled by necessity of their travels to develop a greater degree of thinking organism. The result is that among birds we find many instances of intelligent thought, which cannot be dismissed as "mere instinct." Naturalists place the Crow at the head of the family of Birds, in point of intelligence, and those who have watched these creatures and studied the mental processes, will agree that this is a just decision. It has been proven that Crows are capable of counting up to several figures, and in other ways they display a wonderful degree of almost human sagacity.

Next above the Bird family comes the highest form of all—the Mammals. But before we begin our consideration of these high forms, let us take a hasty glance at the "connecting-links" between the Birds and the Mammals. The lowest forms of the Mammals resemble Birds in many ways. Some of them are toothless, and many of them have the same primitive intestinal arrangements possessed by the birds, from which arises their name, Monotremes. These Monotremes may be called half-bird and half-mammal. One of the most characteristic of their family is the Ornithorhynchus, or Duck-bill, which the early naturalists first thought was a fraud of the taxidermists, or bird-stuffers, and then, when finally convinced, deemed it a "freak-of-nature." But it is not a freak creature, but a "connecting-link" between the two great families of creatures. This animal presents a startling appearance to the observer who witnesses it for the first time. It resembles a beaver, having a soft furry coat, but also has a horny, flat bill like a duck, its feet being webbed, but also furnished with claws projecting over the edge of the web-foot. It lays eggs in an underground nest—two eggs at a time, which are like the eggs of birds, inasmuch as they contain not only the protoplasm from which the embryo is formed, but also the "yolk." on which the embryo feeds until hatched. After the young Duck-bill is hatched, it feeds from teatless glands in the mother's body, the milk being furnished by the mother by a peculiar process. Consider this miracle—an animal which lays eggs and then when her young are hatched nourishes them with milk. The milk-glands in the mother are elementary "breasts."

The above-mentioned animal is found in Australia, the land of many strange forms and "connecting-links," which have survived there while in other parts of the globe they have vanished gradually from existence, crowded out by the more perfectly evolved forms. Darwin has called these surviving forms "living fossils." In that same land is also found the Echidna or spiny ant-eater, which lays an egg and then hatches it in her pouch, after which she nourishes it on milk, in a manner similar to that of the Duck-bill. This animal, like the Duck-bill, is a Monotreme.

Scientists are divided in theories as to whether the Monotremes are actually descended directly from the Reptiles or Birds, or whether there was a common ancestor from which Reptiles and Birds and Mammals branched off. But this is not important, for the relationship between Reptiles, Birds and Mammals is clearly proven. And the Monotremes are certainly one of the surviving forms of the intermediate stages.