Although the “sluice-gates,” so to speak, running from C to B are, therefore, always open slightly; they are never open wide; it is not natural for them to be so. But if, under any great stress, thought or emotion, the downward nervous current were as strong as that ordinarily running from A to B; then we should appear to see as clearly; the object would appear just as solid and real and outstanding to us as any other entity. We should experience a “full-blown hallucination.”

All this being so, it is almost natural to suppose that one method by which these psychical sluice-gates could be more widely opened would be under the impact of a telepathic impulse. If we assume that this in some manner arouses into instantaneous and great activity the higher psychical centers (C), these would very probably communicate this impulse to B—downwards, along the nerve-tracts connecting the two (or to the hearing centers, when we should experience an auditory hallucination, and hear our name spoken, etc.). In this way we could account for a telepathic hallucination, originating in this manner; and it is surely to be supposed that, at the moment of death, some peculiar quickening of the mental and spiritual life takes place—the peculiar flashes of memory by those drowning, etc., seeming to show this.

So, then, we arrive at a sort of explanation of many of these cases of apparitions, occurring at the moment of death; for we have shown them to be “telepathic hallucinations.” This is also the correct explanation, doubtless, for many cases in which apparitions of the living have been seen—in which a phantasm of a living person has appeared to another, during sleep, or in hypnotic trance, etc.

But how about those ghosts which appear some time after death? They, at least, cannot be explained by any such theory. What has been said by way of explanation of these cases?

It will be remembered that telepathy is the basis of the explanation thus far. Let us extend this. We have only to suppose that the spirit of man survives the shock of death, and that it can continue to exert its powers and capacities also. For, if a living mind can influence the living by telepathy; why not a “dead” one? Why should not the surviving spirit of man continue to influence us, by telepathy? If they could, we should still have cases of telepathic hallucinations—induced from the mind of a discarnate, not an incarnate, spirit. The “ghost” might still be a telepathic hallucination. And if several persons saw the figure at once, we should, on this theory, have a case of collective hallucination—in which one mind affected all the rest equally and simultaneously.

GHOSTS WHICH MOVE MATERIAL OBJECTS

Such is the theory—rather far-fetched, it is true; but certainly the most rational and common-sense so far advanced to explain many of the facts. It is probable, however, that this explanation will not serve to explain all of them. Thus, in those cases where the apparition moved a material object, opened a door, etc., such a theory would have to be abandoned, for the simple reason that a mental concept, an hallucination, cannot open doors and move objects! There must be an outstanding, material entity to effect this. There must be a real ghost. And in those cases where the apparition has been seen by several persons at once, or even photographed, it seems more reasonable to suppose that a material, space-occupying body was present rather than to assume that the various witnesses or the camera were hallucinated.

In the following cases, for example, the apparition performs a definite physical action—snuffs a candle with its fingers, an action which a pure hallucination could hardly be supposed to perform. The account is by the Rev. D. W. G. Gwynne, M.I., and is printed in Phantasms of the Living, Vol. II., pp. 202-3. After telling of certain minor phenomena, he proceeds:

“I now come to the mutual experience of something that is as fresh in its impression as if it were the occurrence of yesterday. During the night I became aware of a draped figure passing across the foot of the bed towards the fireplace. I had the impression that the arm was raised, pointing with the hand towards the mantlepiece, on which a night-light was burning. Mrs. Gwynne at this moment seized my arm, and the light was extinguished. Notwithstanding, I distinctly saw the figure returning towards the door, and being under the impression that one of our servants had found her way into the room, I leaped out of bed to intercept the intruder, but found, and saw, nothing....”