“The psychometer is clairvoyant; that is, he sees with the inner eye. Unless his will-power is very strong, unless he has thoroughly trained himself to that particular phenomenon, and his knowledge of the capabilities of his sight are profound, his perceptions of places, persons, and events, must necessarily be very confused.
But in the case of mesmerization, in which this same clairvoyant faculty is developed, the operator, whose will holds that of the subject under control, can force him to concentrate his attention upon a given picture long enough to observe all its minute details.
Moreover, under the guidance of an experienced mesmerizer, the seer would excel the natural psychometer in having a prevision of future events, more distinct and clear than the latter. And to those who might object to the possibility of perceiving that which “yet is not”, we may put the question: Why is it more impossible to see that which will be, than to bring back to sight that which is gone, and is no more?
According to the kabalistic doctrine, the future exists in the astral light in embryo, as the present existed in embryo in the past.”
H. P. Blavatsky