To begin with, consciousness monopolized by the number and intensity of its images is closed to the influences of the outside world, or else receives them only to make them enter the web of its dream. The internal life annihilates the external, which is just the opposite of ordinary life.
Further, the unconscious or subconscious activity passes to the first plane, plays the first part, while preserving its impersonal character.
This much allowed, if we would go further, we are thrown into increasing difficulties. The existence of an unconscious working is beyond doubt; facts in profusion could be given in support of this obscure elaboration which enters consciousness only when all is done. But what is the nature of this work? Is it purely physiological? Is it psychological? We come to two opposing theses. Theoretically, we may say that everything goes on in the realm of the unconscious just as in consciousness, only without a message to me; that in clear consciousness the work may be followed up step by step, while in unconsciousness it proceeds likewise, but unknown to us. It is evident that all this is purely hypothetical.
Inspiration resembles a cipher dispatch which the unconscious activity transmits to the conscious process, which translates it. Must we admit that in the deep levels of the unconscious there are formed only fragmentary combinations and that they reach complete systematization only in clear consciousness, or, rather, is the creative labor identical in both cases? It is difficult to decide. It seems to be accepted that genius, or at least richness, in invention depends on the subliminal imagination,[21] not on the other, which is superficial in nature and soon exhausted. The one is spontaneous, true; the other, artificial, feigned. "Inspiration" signifies unconscious imagination, and is only a special case of it. Conscious imagination is a kind of perfected state.
To sum up, inspiration is the result of an underhand process existing in men, in some to a very great degree. The nature of this work being unknown, we can conclude nothing as to the ultimate nature of inspiration. On the other hand, we may in a positive manner fix the value of the phenomenon in invention, all the more as we are inclined to over-value it. We should, indeed, note that inspiration is not a cause but an effect—more exactly, a moment, a crisis, a critical stage; it is an index. It marks either the end of an unconscious elaboration which may have been very short or very long, or else the beginning of a conscious elaboration which will be very short or very long (this is seen especially in cases of creation suggested by chance). On the one hand, it never has an absolute beginning; on the other hand, it never delivers a finished work; the history of inventions sufficiently proves this. Furthermore, one may pass beyond it; many creations long in preparation seem without a crisis, strictly so called; such as Newton's law of attraction, Leonardo da Vinci's "Last Supper," and the "Mona Lisa." Finally, many have felt themselves really inspired without producing anything of value.[22]
II
What has been said up to this point does not exhaust the study of the unconscious factor as a source of new combinations. Its rôle can be studied under a simpler and more limited form. For this purpose we need to return for the last time to association of ideas. The final reason for association (outside of contiguity, in part at least) must be sought in the temperament, character, individuality of the subject, often even in the moment; that is, in a passing influence, hardly perceptible because it is unconscious or subconscious. These momentary dispositions in latent form can excite novel relations in two ways—through mediate association and through a special mode of grouping which has recently received the name "constellation."
1. Mediate association has been well known since the time of Hamilton, who was the first to determine its nature and to give a personal example that has become classic. Loch Lomond recalled to him the Prussian system of education because, when visiting the lake, he had met a Prussian officer who conversed with him on the subject. His general formula is this: A recalls C, although there is between them neither contiguity nor resemblance, but because a middle term, B, which does not enter consciousness, serves as a transition between A and C. This mode of association seemed universally accepted when, latterly, it has been attacked by Münsterberg and others. People have had recourse to experimentation, which has given results only in slight agreement.[23] For my own part, I count myself among those contemporaries who admit mediate association, and they are the greater number. Scripture, who has made a special study of the subject, and who has been able to note all the intermediate conditions between almost clear consciousness and the unconscious, considers the existence of mediate association as proven. In order to pronounce as an illusion a fact that is met with so often in daily experience, and one that has been studied by so many excellent observers, there is required more than experimental investigations (the conditions of which are often artificial and unnatural), some of which, moreover, conclude for the affirmative.
This form of association is produced, like the others, now by contiguity, now by resemblance. The example given by Hamilton belongs to the first type. In the experiments by Scripture are found some of the second type—e.g., a red light recalled, through the vague memory of a flash of strontium light, a scene of an opera.
It is clear that by its very nature mediate association can give rise to novel combinations. Contiguity itself, which is usually only repetition, becomes the source of unforeseen relations, thanks to the elimination of the middle term. Nothing, moreover, proves that there may not sometimes be several latent intermediate terms. It is possible that A should call up D through the medium of b and c, which remain below the threshold of consciousness. It seems even impossible not to admit this in the hypothesis of the subconscious, where we see only the two end links of the chain, without being able to allow a break of continuity between them.