y means of
clairvoyant vision. To such a one, these sights are just as natural as
those of the physical plane to the person functioning by ordinary physical
senses. One is as natural as is the other--there is nothing supernatural
about either.

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