"'She entered with bare head, greeted me with the hand three times in complimentary fashion, turned round to the left toward Herr N., and waved her hand to him three times; after which the figure quietly, and again without any creaking of the door, went out. We followed at once in order to discover whether there were any deception, but found nothing. The strangest thing was this, that our night-watch of two men whom I had shortly found on the watch were now asleep, though at my first call they were on the alert; and that the door of the room, which always opens with a good deal of noise, did not make the slightest sound when opened by the figure.'"[K]
It is also significant that, as was made evident by the census of hallucinations, by far the larger number of apparitions reported are those of persons still alive and well. In these cases, nobody being dead, it is absurd[L] to raise the cry of spirits, and the only tenable hypothesis is that, through one of the several causes which seem to quicken telepathic action, a spontaneous telepathic hallucination has been produced. Now, the experiments conducted by the society and by independent investigators have shown that telepathic messages often lie dormant for hours beneath the threshold of the receiver's consciousness, being consciously apprehended only when certain favoring conditions arise; as, for example, when the receiver has fallen asleep, or into a state of reverie, or when, tired out after a long day's work, he has utterly relaxed mentally. This is technically known as "deferred percipience," and, considered in conjunction with the discoveries mentioned, it is amply sufficient to dislodge from the realm of the supernatural the ghost seen by Lord Brougham, and every ghost that is not a mere imposter.
In the Brougham case the exciting cause of the hallucination seems to have been the death pact. As he lay dying in India, the mind of the whilom schoolboy would, consciously or unconsciously, revert to that agreement with the friend of his youth, and thence would arise the desire to let him know that the plighted word had not been forgotten. Across the vast intervening space, by what mechanism we as yet do not know, the message would flash instantaneously, to remain unapprehended, perhaps for hours after the death of the sender, until, in the quiet of the Swedish inn and resting from the fatigues of the journey, Brougham's mental faculties passed momentarily into the condition necessary for its objective realization.
Then, precisely as in experimental telepathy the receiver sees a hallucinatory image of the trinket or the book; with a suddenness and vividness that could not fail to shock him, the message would find expression by the creation before Brougham's startled eyes of a hallucinatory image of the friend who, as he was to learn later, had died that same day thousands of miles from Sweden. Knowing nothing of the possibilities of the human mind, as revealed, if only faintly, by the labors of a later generation, it was inevitable he should believe he had no alternative between dismissing the experience as a peculiar dream or admitting that in very truth he had looked upon a ghost.
FOOTNOTES:
[J] The committee's report will be found in the tenth volume of the "Proceedings of the Society for Psychical Research."
[K] Translation from the "Journal of the Society for Psychical Research," Vol. IV. p. 218.
[L] I had originally written "impossible," but a critic of my "Riddle of Personality," in which this point was taken up, has convinced me that "absurd" is the better word. The critic in question writes: "what evidence has the author that an apparition of the living is not a spirit? Why may not the spirit of the living person have left his body and appeared to his friend? Such is the view of many people, and it coincides with certain phenomena in dreams." But, to raise only one objection: If the apparition appear at a moment when the person seen is actively engaged elsewhere—it may be in writing a book, or preaching a sermon—what is it that is seen, and what is it that is writing or preaching? Is the "spirit" present in both places at the same time—in the shadowy apparition, and in the living, breathing, busily-occupied human entity? Assuredly, if it be not "impossible" to raise the cry of spirits in such a case, it would at all events seem "absurd" to do so.