Without emphasizing the matter we may, then, say that this thesis rests on a weighty mass of facts; that the motor element of the image tends to cause it to lose its purely "inner" character, to objectify it, to externalize it, to project it outside of ourselves. It should, however, be noted that what has just been said does not take us beyond the reproductive imagination--beyond memory. All these revived images are _repetitions_; but the creative imagination requires something _new_--this is its peculiar and essential mark. In order to grasp the transition from reproduction to production, from repetition to creation, it is necessary to consider other, more rare, and more extraordinary facts, found only among some favored beings. These facts, known for a long time, surrounded with some mystery, and attributed in a vague manner "to the power of the imagination," have been studied in our own day with much more system and exactness. For our purpose we need to recall only a few of them. Many instances have been reported of tingling or of pains that may appear in different parts of the body solely through the effect of the imagination. Certain people can increase or inhibit the beating of their hearts at will, i.e., by means of an intense and persistent representation. The renowned physiologist, E. F. Weber, possessed this power, and has described the mechanism of the phenomenon. Still more remarkable are the cases of vesication produced in hypnotized subjects by means of suggestion. Finally, let us recall the persistent story of the stigmatized individuals, who, from the thirteenth century down to our own day, have been quite numerous and present some interesting varieties--some having only the mark of the crucifix, others of the scourging, or of the crown of thorns.[1] Let us add the profound changes of the organism, results of the suggestive therapeutics of contemporaries; the wonderful effects of the "faith cure," i.e., the miracles of all religions in all times and in all places; and this brief list will suffice to recall certain creative activities of the human imagination that we have a tendency to forget. It is proper to add that the image acts not altogether in a positive manner. Sometimes it has an inhibitory power. A vivid representation of a movement arrested is the beginning of the stoppage of that movement; it may even end in complete arrest of the movement. Such are the cases of "paralysis by ideas" first described by Reynolds, and later by Charcot and his school under the name of "psychic paralysis." The patient's inward conviction that he cannot move a limb renders him powerless for any movement, and he recovers his motor power only when the morbid representation has disappeared. These and similar facts suggest a few remarks.