“Dr. Brierre de Boismont, in his volume on Hallucinations, reviews a wonderful variety of visions, apparitions, and ecstasies, generally termed hallucinations.
“We cannot deny”, he says, “that in certain diseases we see developed a great surexcitation of sensibilty, which lends to the senses a prodigious acuteness of perception. Thus, some individuals will perceive at considerable distances, others will announce the approach of persons who are really on their way, although those present can neither hear nor see them coming.”
A lucid patient, lying in his bed, announces the arrival of persons to see whom he must possess transmural vision, and this faculty is termed by Brierre de Boismont – hallucination.
In our ignorance, we have hitherto innocently supposed that in order to be rightly termed a hallucination, a vision must be subjective. It must have an existence only in the delirious brain of the patient.
But if the latter announces the visit of a person, miles away, and this person arrives at the moment predicted by the seer, then his vision was no more subjective, but on the contrary perfectly objective, for he saw that person in the act of coming.
And how could the patient see, through solid bodies and space an object shut out from the reach of our mortal sight, if he had not exercised his spiritual eyes on that occasion? Coincidence?”
H. P. Blavatsky