A profound study of the hypnotic state, such as has been made by Prof.William James, of Harvard College, the great authority on psychical phenomena and president of the Psychic Research Society, leads to the conviction that in the hypnotic sleep the will is only in abeyance, as it is in natural slumber or in sleepwalking, and any unusual or especially exciting occurrence, especially anything that runs against the grain of the nature, reawakens that will, and it soon becomes as active as ever.
This is ten times more true in the matter of post-hypnotic suggestion, which is very much weaker than suggestion that takes effect during the actual hypnotic sleep. We shall see, furthermore, that while acting under a delusion at the suggestion of the operator, the patient is really conscious all the time of the real facts in the case--indeed, much more keenly so, often times, than the operator himself. For instance, if a line is drawn on a sheet of paper and the subject is told there is no line, he will maintain there is no line; but he has to see it in order to ignore it.
