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 b