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.

Finally, you will see by reference to other chapters of this book, that one may manifest simple clairvoyant powers (as well as the more complicated ones of time and space clairvoyance) not only in the ordinary waking state, but also in the state of dreams.  In fact, some of the most striking psychic phenomena are manifested when the seer is in the dream state.  As we proceed, you will find that every phase of the great subject will fit into its place, and will be found to blend with every other phase.  There will be found a logical harmony and unity of thought pervading the whole subject.  But we must use single bricks and stones as we build—­it is only in the completed structure that we may perceive the harmonious unity.