Let us follow step by step the passage from reproduction pure and simple to the creative stage, showing therein the persistence and preponderance of the motor element in proportion as we rise from mere repetition to invention.

First of all, do all representations include motor elements? Yes, I say, because every perception presupposes movements to some extent, and representations are the remnants of past perceptions. Certain it is that, without our examining the question in detail, this statement holds good for the great majority of cases. So far as visual and tactile images are concerned there is no possible doubt as to the importance of the motor elements that enter into their composition. The eye is very poorly endowed with movements for its office as a higher sense-organ; but if we take into account its intimate connection with the vocal organs, so rich in capacity for motor combinations, we note a kind of compensation. Smell and taste, secondary in human psychology, rise to a very high rank indeed among many animals, and the olfactory apparatus thus obtains with them a complexity of movements proportionate to its importance, and one that at times approaches that of sight. There yet remains the group of internal sensations that might cause discussion. Setting aside the fact that the vague impressions bound up with chemical changes within the tissues are scarcely factors in representation, we find that the sensations resulting from changes in respiration, circulation, and digestion are not lacking in motor elements. The mere fact that, in some persons, vomiting, hiccoughs, micturition, etc., can be caused by perceptions of sight or of hearing proves that representations of this character have a tendency to become translated into acts.

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.

First, that we have here creation in the strict sense of the word, though it be limited to the organism. What appears is new. Though one may strictly maintain that from our own experience we have a knowledge of formication, rapid and slow beating of the heart, even though we may not be able ordinarily to produce them at will, this position is absolutely untenable when we consider cases of vesication, stigmata, and other alleged miraculous phenomena: these are without precedent in the life of the individual.

Second, in order that these unusual states may occur, there are required additional elements in the producing mechanism. At bottom this mechanism is very obscure. To invoke "the power of the imagination" is merely to substitute a word where an explanation is needed. Fortunately, we do not need to penetrate into the inmost part of this mystery. It is enough for us to make sure of the facts, to prove that they have a representation as the starting point, and to show that the representation by itself is not enough. What more then is needed? Let us note first of all that these occurrences are rare. It is not within the power of everybody to acquire stigmata or to become cured of a paralysis pronounced incurable. This happens only to those having an ardent faith, a strong desire that it shall come to pass. This is an indispensable psychic condition. What is concerned in such a case is not a single state, but a double one: an image followed by a particular emotional state (desire, aversion, etc.). In other words, there are two conditions: In the first are concerned the motor elements included in the image, the remains of previous perceptions; in the second, there are concerned the foregoing, plus affective states, tendencies that sum up the individual's energy. It is the latter fact that explains their power.

To conclude: This group of facts shows us the existence, beyond images, of another factor, instinctive or emotional in form, which we shall have to study later and which will lead us to the ultimate source of the creative imagination.