We frequently hear people who are students of the occult speak of a deceased person as having left the earth. But passing into the astral plane, or world, is not, of course, leaving the earth. Both the astral world and the mental world are divisions of the earth. As the atmosphere is invisible and yet is a part of the earth's physical matter, so the invisible astral and mental regions are other parts of the earth. They are properly called worlds because the activities in consciousness that make up existence there are as remote from ours as though they were upon another planet. We have erroneously supposed that with the physical senses we really see and know the earth, whereas we have known only that small fragment of the earth that consists of physical matter. Beyond the limitation of our poor senses stretch in unsuspected grandeur vaster regions of our earth, swept by the vibrations of an intenser life.

CHAPTER VI.
THE MECHANISM OF CONSCIOUSNESS

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.