But there are other, and even more wonderful attributes of astral visioning than that which we have just related. Let us take a general survey of these, so that you may be familiar with what you hope to see on the astral plane, and which you will see when you have sufficiently developed your clairvoyant powers.

What would you think if you could "see through a brick wall?" Well, the clairvoyant is able to do this. For that matter, the physical X Rays are able to penetrate through solid substances, and the astral vibrations are even more subtle than these. It seems strange to hear of this kind of visioning as purely natural, doesn't it? It smacks strongly of the old supernatural tales—but it is as simply natural as is the X Ray. The advanced clairvoyant is able to see through the most solid objects, and inside of anything, for that matter. The astral senses register the subtle vibrations of the astral plane, just as the physical eye registers the ordinary rays of light-energy. You are able to see through solid glass, with the physical eye, are you not? Well, in the same way the clairvoyant sees through solid steel or granite. It is all a matter of registering vibrations of energy—nothing more, and nothing less.

It is in this way that the trained clairvoyant is able to read from closed books, sealed letters, etc. In the same way, he is able to pierce the dense soil, and to see far down into the depths of the earth, subject to certain limitations. Veins of coal, oil, and other substances have been discovered clairvoyantly in this way. Not every clairvoyant is able to do this, but the advanced ones have done it. In the same way, the trained clairvoyant is able to see inside the bodies of sick persons, and to diagnose their ailments, providing, of course, he is familiar with the appearance of the organs in health and in disease, and has a sufficient knowledge of physiology and pathology to interpret what he sees.

An authority on the phenomena of the astral plane has written entertainingly and correctly regarding this phase of simple clairvoyance, as follows: "The possession of this extraordinary and scarcely expressible power, then, must always be borne in mind through all that follows. It lays every point in the interior of every solid body absolutely open to the gaze of the seer, just as every point in the interior of a circle lies open to the gaze of a man looking down upon it. But even this is by no means all that it gives to its possessor. He sees not only the inside as well as the outside of every object, but also its astral counterpart. Every atom and molecule of physical matter has its corresponding astral atoms and molecules, and the mass which is built up out of these is clearly visible to the clairvoyant. Usually the astral form of any object projects somewhat beyond the physical part of it, and thus metals, stones and other things are seen surrounded by an astral aura.

"It will be seen at once that even in the study of inorganic matter a man gains immensely by the acquisition of this vision. Not only does he see the astral part of the object at which he looks, which before was wholly hidden from him; not only does he see much more of its physical constitution than he did before, but even what was visible to him before is now seen much more clearly and truly. * * * Another strange power of which he may find himself in possession is that of magnifying at will the minutest physical or astral particle to any desired size, as through a microscope—though no microscope ever made, or ever likely to be made, possesses even a thousandth part of this psychic magnifying power. By its means the hypothetical molecule and atom postulated by science become visible and living realities to the occult student, and on this closer examination he finds them to be much more complex in their structure than the scientific man has yet realized them to be. It also enables him to follow with the closest attention and the most lively interest all kinds of electrical, magnetic, and other etheric action; and when some of the specialists in these branches of science are able to develop the power to see these things whereof they write so facilely, some very wonderful and beautiful revelations may be expected.

"This is one of the SIDDIHIS or powers described in the Oriental books as accruing to the man who devotes himself to spiritual development, though the name under which it is there mentioned might not be immediately recognizable. It is referred to as 'the power of making oneself large or small at will,' and the reason of a description which appears so oddly to reverse the fact is that in reality the method by which this feat is performed is precisely that indicated in these ancient books. It is by the use of temporary visual machinery of inconceivable minuteness that the world of the infinitely little is so clearly seen; and in the same way (or rather in the opposite way) it is by enormously increasing the size of the machinery used that it becomes possible to increase the breadth of one's view—in the physical sense as well as, let us hope, in the moral—far beyond anything that science has ever dreamt of as possible for man. So that the alteration in size is really in the vehicle of the student's consciousness, and not in anything outside of himself; and the old Oriental books have, after all, put the case more accurately than have we. I have indicated, though only in the roughest outlines, what a trained student, possessed of full astral vision, would see in the immensely wider world to which that vision introduced him; but I have said nothing of the stupendous change in his mental attitude which comes from the experimental certainty regarding matters of paramount importance. The difference between even the profoundest intellectual conviction, and the precise knowledge gained by direct personal experience, must be felt in order to be appreciated."

Now, here at this place, I wish to call the attention of the student to the fact that while the above stated, phenomena strictly belong to the class of "simple clairvoyance," rather than to "space clairvoyance," or "time clairvoyance" respectively, nevertheless the same phenomena may be manifested in connection with that of these other classes of clairvoyance. For instance, in space clairvoyance the trained clairvoyant is able not only to perceive things happening at points far distant, but may also (if highly developed psychically) be able to perceive the details just mentioned as well as if he were at that distant point in person. Likewise, in time clairvoyance, the clairvoyant may exercise the power of magnifying vision regarding the object far distant in time, just as if he were living in that time. So here as elsewhere we find the different classes of phenomena shading and blending into each other. At the best, classifications are useful principally for convenience in intellectual consideration and reasoning.

In the same way, the clairvoyant may manifest the above mentioned forms of astral sensing in cases when the astral vision has been awakened by psychometry, or by crystal gazing, as well as in those cases in which the condition has been brought about through meditation, or similar methods.

I would also call the attention of the student to the fact that in the above description of the phenomena of simple clairvoyance I have made no mention of the sights of the astral plane which often become visible to the clairvoyant, and which have to do with astral bodies, astral shells, the disembodied souls of those who have passed on to other planes of existence, etc. I shall take up these matters in other parts of this course, and shall not dwell upon them in this place. But, I wish you to remember that the same power which enables you to sense other objects by means of the astral scenes, is the same that is called into operation in the cases to which I have just referred.

The astral plane is a wonderful plane or field of being, containing many strange and wonderful beings and things. The person living on the physical plane may visit the astral plane in the astral body; and, again, he may perceive the happenings and scenes of that plane by means of the awakened and developed astral senses. Some clairvoyants find it easy to function in one way, and some in another. It is reserved for the scientifically developed clairvoyant to manifest the well-rounded power to perceive the phenomena of the astral plane in its wonderful entirety.