The soul is a center of consciousness within the all-consciousness, or the life of the solar Logos; an individualized portion of the universal mind. That fragment of the divine life, with its latent God-like attributes, is expressed through a mechanism of consciousness that is formed of the matter of the various planes. Naturally enough it is expressed more fully upon the higher planes than upon the lower. At a very high level it is known as the monad. When it reaches down into the higher subdivisions of the mental world it is the ego, a lesser expression of the same divine life that pours from the Logos through the monad—lesser because it is then functioning through the denser matter of a lower level.

The knowledge that has been gained about the nature of matter in recent years is helpful in understanding the activities of consciousness. The atom is found to be a center of force, and we are at the point where matter, as we have known it, disappears. All the force and consciousness of the solar system is, of course, but the life of the Logos, and on higher planes the distinctions we observe here fade out. Matter becomes a very different thing from the matter we know. The ether of the physical world is almost inconceivably tenuous matter. Yet it is gross when compared to the lowest grade of astral matter. The matter of the mental world is enormously rarer than the most tenuous matter of the astral world. In view of these facts it requires no stress of the imagination to understand that the matter of the higher planes is responsive to the vibrations of consciousness.

The outraying energies of the individualized center of consciousness act upon the matter of the plane and draw about it a film that slowly grows into a vehicle through which consciousness can be more fully expressed, and which serves as a point of vantage from which its expression can be extended to lower planes.

The seven subdivisions of the mental world fall naturally into two groups, composed of the three higher and the four lower grades of matter. The ego, anchored in the matter of the two planes above the mental world, descends to the upper levels of the mental and the vesture of matter with which it clothes itself is known as the causal body. Sending its energies downward, or outward, to the lower levels of the mental world, it establishes itself there in what slowly becomes a mental body. Again in the astral world the process is repeated and a vehicle of consciousness is formed of astral matter. The physical body is the lowest and last of the vehicles to be formed and as it is slowly built, in the months preceding birth, the matter it contains falls into place under the operation of occult laws which permit no element of chance to enter into its construction.

Each of these bodies serves as a vehicle of consciousness on the plane to which it belongs. The soul is evolving simultaneously in each of the worlds, physical, astral and mental, and these various bodies enable it to receive the vibrations of the plane they belong to and thus to be conscious there. The mental body is the seat of intellectual activity. Thought arises as a vibration in it and passes through the astral body into the physical brain. Whenever we think we are using the mental body. The astral body is the seat of emotion. With it we feel. All emotion passes from it to the physical body to be expressed in the material world. The astral world is also called the emotional world, as the mental plane is called the mental world. The physical body is the soul's instrument of action. It attaches it to the physical world, enables the consciousness to contact material objects and to move and express on the material plane the thoughts and emotions generated in the mental and astral bodies.

Another part of the mechanism of consciousness is known as the etheric double. But it is only a link in the chain and not a body through which the soul can function. It is composed of the etheric matter of the physical world and connects the astral body with the physical body. As every atom of physical matter is surrounded and permeated by etheric matter, it follows that the physical body has its duplicate in etheric matter. "Etheric double" is a very appropriate name since it is a perfect duplicate of the physical body in etheric matter. It serves the purpose of supplying the life force to the nervous system and is the medium through which sensation is conveyed. The action of an anaesthetic drives out so much of the matter of the etheric double that the connection is broken and sensation in the physical body ceases.

One of the difficulties in the way of getting a clear conception of the constitution of man, and realizing that he is a soul functioning through various vehicles of consciousness, is the materialistic modes of thought common to Occidental civilization. We are accustomed to thinking of the physical body itself as being the man, and if there is any thought at all of the consciousness surviving the death of the body it is very vague and indefinite as to where it exists and how it is expressed. Very little thinking should be necessary to show the absurdity of the belief that the body is the man. Two bodies may be alike, as in the case of twins, but the souls, the real men, may be absolutely unlike. The real man is superphysical. His intelligence or his stupidity, his genial disposition or his moroseness, his generosity or his selfishness, are but the manifestations of himself through the body by which they are expressed. The body itself is a mere aggregation of physical atoms, as a planet is, so organized that they constitute an instrument for a purpose. The mass of matter constituting the body is a variable mass. It may increase or diminish greatly, but the man remains unchanged. There is no permanent relationship between the man and the physical matter which he uses for his vehicle of consciousness. According to the physiologists every atom of the body changes within a period of a few years. The cells wear out, break down and pass away to be replaced by new matter. Not a particle of the physical matter that was in our bodies seven years ago is there now, and none that is there now will remain. Within seven years, or less, we shall have bodies composed of new matter as certainly as an infant's is.

Of course such reconstruction of the body does not change its appearance. It is built on the same lines. It is as it would be with some very old cathedral. As the centuries pass it must be slowly rebuilt. The floors wear out and are relaid. The roof serves its time and is replaced. The walls crumble first in one place and then another until they have been completely reconstructed. After a thousand years has passed there may be none of the original material in the building, yet its appearance is unchanged. The bodies we have today shall have passed away and will be growing in the trees and blooming in the flowers in a few years. The bodies we shall then have are now scattered through the world. They will be brought together during that time and will come from many parts of the earth.

The physical senses continually deceive us and nowhere more than in our ideas about the physical body. It is an unstable mass of matter, in constant motion, with great gulfs of space between its atoms. Emerson was very far ahead of his time and it took science a half century to catch up with him and learn that he had recorded a fact in nature when he wrote:

In 1908 the Scientific American Supplement, commenting on our reconstructed ideas about matter, remarked that the actual mass of the physical body to the apparent mass was about one to one million!

If the physical body is merely an organized mass of matter, continually varying, constantly coming and going, and having no permanent relationship to the consciousness that functions through it, what reason is there for believing that it is the man? Does it seem strange that the center of consciousness should be able to draw about itself on the higher planes aggregations of matter and finally to express itself on the material plane through the mass of matter we call the body? If that is mysterious quite as miraculous things are going on constantly about us unnoticed. Thoreau calls attention to the fact that we become so accustomed to the marvelous expressions of life all about us that we are oblivious of the phenomena that are taking place. Commenting on the magic possible to nature he says:

A seed is a center of force through which life, at a much lower level than the human, flows and gathers about that center the material mass that serves the purpose of its lowly evolution. At the human level consciousness has become self-consciousness and a marvelously complex mechanism is required to express it and serve the purpose of its farther evolution.

This complex mechanism of consciousness, composed of the various bodies through which the ego expresses itself at different levels, is used as a whole for functioning on the physical plane. But when the ego is functioning no farther down than the astral plane, the physical body is, of course, temporarily discarded. It is then in the condition known as sleep, or trance. Sleep is the natural withdrawing of the consciousness from the physical body. When the separation occurs in the case of the medium it is called a trance. The cause of the inert condition of the physical body is the same in both cases—the withdrawal of the consciousness of the ego. The physical body is then unoccupied, but the consciousness maintains magnetic connection with it. In death that tie is severed and the consciousness can return to the body no more. Instances in which the apparently dead are brought back to life are cases where the magnetic tie is not broken, notwithstanding there is every appearance of death.

In form and feature the physical body has its exact duplicate in the astral body, and in it we function in the astral world whenever the separation between the two occurs, whether from sleep or death. In sleep the consciousness, expressing itself in the astral body in the astral world, may be turned dreamily inward or it may be turned outward and be vividly aware of the life and activities of that world. But there is small chance that any memory of it will come through into the physical consciousness upon awakening. Occasionally, however, it does occur and then it is usually remembered as a very vivid dream. In illness, and other abnormal conditions, the connection between the physical and astral consciousness is much closer. At a comparatively high point in evolution the two states of consciousness merge. The man is then continuously conscious, and has a full memory in the physical brain of all his activities in the astral world during the hours when the physical body was asleep.

Consciousness is, of course, at its worst when expressed through the limitation of its lower vehicles. Any person, whether brilliant or stupid, will be much abler and keener on the astral plane than on the physical, because in sleep, and after death, he has lost the limitations imposed by physical matter. But the degree of restriction is variable and depends much upon the kind of matter of which the brain and body are composed; for the physical atoms vary greatly, and as they come and go in the passing years the body may either become purified and refined or it may grow grosser and coarser. By careful attention to food and drink, and by control of the emotions, the limitations of physical matter may be lessened and a much higher and more efficient state of consciousness in the physical body can be attained.