Now all this means that the ego, or soul, or mind, if you prefer the termis the real Knower who becomes aware of the outside world by means of the messages of the senses. Cut off from these messages the mind would be almost a blank, so far as outside objects are concerned. Every one of the senses so cut off would mean a diminishing or cutting-off of a part of the world of the ego. And, likewise, each new sense added to the list tends to widen and increase the world of the ego. We do not realize this, as a rule. Instead, we are in the habit of thinking that the world consists of just so many things and facts, and that we know every possible one of them. This is the reasoning of a child. Think how very much smaller than the world of the average person is the world of the person born blind, or the person born deaf! Likewise, think how very much greater and wider, and more wonderful this world of ours would seem were each of us to find ourselves suddenly endowed with a new sense! How much more we would perceive. How much more we would feel. How much more we would know. How much more we would have to talk about. Why, we are really in about the same position as the poor girl, born blind, who said that she thought that the color of scarlet must be something like the sound of a trumpet. Poor thing, she could form no conception of color, never having seen a ray of lightshe could think and speak only in the terms of touch, sound, taste and smell. Had she also been deaf, she would have been robbed of a still greater share of her world. Think over these things a little.
Suppose, on the contrary, that we had a new sense which would enable us to sense the waves of electricity. In that case we would be able to "feel" what was going on at another placeperhaps on the other side of the world, or maybe, on one of the other planets. Or, suppose that we had an X Ray sensewe could then see through a stone wall, inside the rooms of a house. If our vision were improved by the addition of a telescopic adjustment, we could see what is going on in Mars, and could send and receive communications with those living there. Or, if with a microscopic adjustment, we could see all the secrets of a drop of watermaybe it is well that we cannot do this. On the other hand, if we had a well-developed telepathic sense, we would be aware of the thought-waves of others to such an extent that there would be no secrets left hidden to anyonewouldn't that alter life and human intercourse a great deal? These things would really be no more wonderful than is the evolution of the senses we have. We can do some of these things by apparatus designed by the brain of manand man really is but an imitator and adaptor of Nature. Perhaps, on some other world or planet there may be beings having seven, nine or fifteen senses, instead of the poor little five known to us. Who knows!
But it is not necessary to exercise the imagination in the direction of picturing beings on other planets endowed with more senses than have the people of earth. While, as the occult teachings positively state, there are beings on other planets whose senses are as much higher than the earth-man's as the latter's are higher than those of the oyster, still we do not have to go so far to find instances of the possession of much higher and more active faculties than those employed by the ordinary man. We have but to consider the higher psychical faculties of man, right here and now, in order to see what new worlds are open to him. When you reach a scientific understanding of these things, you will see that there really is nothing at all supernatural about much of the great body of wonderful experiences of men in all times which the "horse sense" man sneeringly dismisses as "queer" and "contrary to sense." You will see that these experiences are quite as natural as are those in which the ordinary five senses are employedthough they are super-physical. There is the greatest difference between supernatural and super-physical, you must realize.
All occultists know that man has other senses than the ordinary five, although but few men have developed them sufficiently well to use them effectively. These super-physical senses are known to the occultists as "the astral senses." The term "Astral," used so frequently by all occultists, ancient and modern, is derived from the Greek word "astra," meaning "star." It is used to indicate those planes of being immediately above the physical plane. The astral senses are really the counterparts of the physical senses of man, and are connected with the astral body of the person just as the physical senses are connected with the physical body. The office of these astral senses is to enable the person to receive impressions on the astral plane, just as his physical senses enable him to receive impressions on the physical plane. On the physical plane the mind of man receives only the sense impressions of the physical organs of sense; but when the mind functions and vibrates on the astral plane, it requires astral senses in order to receive the impressions of that plane, and these, as we shall see, are present.
Each one of the physical senses of man has its astral counterpart. Thus man has, in latency, the power of seeing, feeling, tasting, smelling, and hearing, on the astral plane, by means of his five astral senses. More than this, the best occultists know that man really has seven physical senses instead of but five, though these two additional senses are not unfolded in the case of the average person (though occultists who have reached a certain stage are able to use them effectively). Even these two extra physical senses have their counterparts on the astral plane.
Persons who have developed the use of their astral senses are able to receive the sense impressions of the astral plane just as clearly as they receive those of the physical plane by means of the physical senses. For instance, the person is thus able to perceive things occurring on the astral plane; to read the Akashic Records of the past; to perceive things that are happening in other parts of the world; to see past happenings as well; and in cases of peculiar development, to catch glimpses of the future, though this is far rarer than the other forms of astral sight.
Again, by means of clairaudience, the person may hear the things of the astral world, past as well as present, and in rare cases, the future. The explanation is the same in each casemerely the receiving of vibrations on the astral plane instead of on the physical plane. In the same way, the astral senses of smelling, tasting, and feeling operate. But though we have occasional instances of astral feeling, in certain phases of psychic phenomena, we have practically no manifestation of astral smelling or tasting, although the astral senses are there ready for use. It is only in instances of travelling in the astral body that the last two mentioned astral senses, viz., smell and taste, are manifested.
The phenomena of telepathy, or thought transference, occurs on both the physical and the mental plane. On the physical plane it is more or less spontaneous and erratic in manifestation; while on the astral plane it is as clear, reliable and responsive to demand as is astral sight, etc.
The ordinary person has but occasional flashes of astral sensing, and as a rule is not able to experience the phenomenon at will. The trained occultist, on the contrary, is able to shift from one set of senses to the other, by a simple act or effort of will, whenever he may wish to do so. Advanced occultists are often able to function on both physical and astral planes at the same time, though they do not often desire to do so. To vision astrally, the trained occultist merely shifts his sensory mechanism from physical to astral, or vice versa, just as the typewriter operator shifts from the small-letter type to the capitals, by simply touching the shift-key of his machine.