ed nearer at hand, while those appearing in
the foreground, or closer to the seer, denote the present or immediate
future.

"(8) Two principal classes of vision will present themselves to the
sitter--(a) the Symbolic, indicated by the appearance of symbols such as a
flag, boat, knife, gold, etc., and (b) Actual Scenes and Personages, in
action or otherwise. Persons of a positive type of organization, the more
active, excitable, yet decided type, are most likely to perceive
symbolically, or allegorically; while those of a passive nature usually
receive direct or literal revelations. Both classes will find it necessary
to carefully cultivate truthfulness, unselfishness, gratitude for what is
shown, and absolute confidence in the love, wisdom, and guidance of God
Himself."

As the student proceeds with the study of these lessons, he will become
acquainted with various details and methods concerned with the various
phases of clairvoyance, which knowledge he may then combine with the
above, the whole aiding him in the successful manifestation of the psychic
phenomena of crystal-gazing, which, as I have said, is merely one phase of
clairvoyance and under the same general laws and rules of manifestation.
Remember that present, past and future clairvoyance all is possible to
the highly developed crystal gazer.

THE ASTRAL TUBE. Closely allied with the phenomena of crystal-gazing,
and that of psychometry, is that which occultists know as "the astral
tube," although this psychic channel may be developed in ordinary
clairvoyance by means of the power of concentrated attention, etc. I shall
not enter into a detailed or technical discussion of the astral tube, at
this place, but I wish to give you a general and comprehensive view of it
and its workings.

In case of the strong concentration of the mind, in cases of psychometry
or crystal-gazing, a channel or "line of force" is set up in the astral
substance which composes the basis of the astral plane. This is like the
wake of a ship made on the surface of the water through which the ship has
passed. Or it is like a current of magnetic force in the ether. It is
caused by a polarization of the particles composing the astral substance,
which manifest in a current of intense vibrations in the astral substance,
which thus serve as a ready channel for the transmission of psychic force
or astral energy.

The astral tube serves as a ready conductor of the vibrations, currents
and wave