These phenomena have excited special attention when, as in painting and sculpture and the drama, a human being is represented. Suppose, for example, I see a statue of a runner ready to start. I not only see the form and color of the marble and recognize them as a man's; I also feel emotions of excitement, tension, and expectation such as I should myself feel were I too posed and waiting to run a race. And these emotions I experience as the man's, and as his, not in a vague way, but as definitely present in his sculptured form, even in particular parts of it,—in the swelling chest and tightened limbs. Or consider another case. Suppose I see Franz Hals' "Laughing Cavalier." I feel jollity in the face, as the cavalier's. Yet in both cases I may feel the emotions as also my own—as if I too were about to run or were laughing. And the projection of the idea of the self will occur most readily if I am myself a runner or a jolly person. In both instances, moreover, the process will be mediated by impulses to movements that are the normal accompaniments of the emotions in question. If I observe myself carefully, I may find that my own chest is tending to swell and my own limbs to tighten, in imitation of the runner's, or my own pupils to dilate and the muscles of my face to wrinkle and to part, in imitation of the Dutchman's. And these movement-impulses I objectify. I not only see jollity in the face, but laughter as well; in the statue, not only excitement, but running. And again—where my body is, there am I; so I am jolly with the cavalier and excited with the runner. The psychology of this process is simple enough. In my experience there is a plain connection between the sight of a movement and sensations attendant upon movement, and further, a connection between some of these movements, namely, the expressive movements, and the emotions which they express. In accordance with the law of association by contiguity, whenever any one of several mental elements usually connected together is present in the mind, the others tend to arise also. So here. Seeing the semblance of tight muscles and a smiling face, I feel the emotions which have these visual associates, experience the correlated movement-sensations, project them all into the object which initiated the process.

In recent years, a great deal has been made of these movement-sensations in explaining aesthetic feeling. [Footnote: See the discussions in Lee and Thompson: Beauty and Ugliness.] Yet in the case of all people who are not strongly of the motor type, people in whose mental make-up movement plays a minor part in comparison with vision and other sensations, they play a secondary role, or even hardly any role at all. Most spectators, indeed, instead of actually making slight movements imitative of the movements seen or represented, and experiencing the corresponding sensations, make no movements at all and simply experience movement images; this substitution of image for movement probably occurs in the minds of all except the most imitative. Most people, even of the motor type, do not smile when they see the "Laughing Cavalier" or start to run when they see the statue of the runner; careful observation of themselves would disclose only faint movement images which seem to play about their lips or limbs—mere images of movement have supplanted movements. And many visualists would not find any images at all. However, although the mistake has been committed by some investigators of supposing that everybody experiences movement because they themselves, being of the motor type, do, it cannot be denied, I think, that such people attain to a vividness of aesthetic living not reached by others. They appreciate beauty with their bodies as well as with their souls. And in their case too, as has been shown, aesthetic appreciation is more strongly histrionic—they not only put themselves into the work of art, but the idea of themselves as well.

Following the German school of einfuehlung, I have insisted throughout this discussion on the importance of feeling in the aesthetic experience; yet I do not think the voice of those people can be neglected who claim that their experience with works of art is of slight or no emotional intensity. There are people who would report that they feel no jollity when they see the "Laughing Cavalier," or anguish when they read the Ugolino Canto in the Inferno; yet such people often have a highly developed aesthetic taste. How can this difference be accounted for?

Starting with the emotional appreciation of art as primary, we can account for it in this wise. It is a familiar phenomenon in the mental life for a concept or idea of an emotional experience to take the place of that experience. What man has not rejoiced when the simple and cold judgment, "I suffered then," has come to supplant a recurring torment? Or who that has lived constantly with a sick person has not observed how, looking on the face of pain, inevitably the mere comment, "he is in distress," comes to supplant the liveliest sympathetic thrill? There are many reasons for this. The idea or judgment is a less taxing thing than an emotion, and so is substituted for it in the mind, which everywhere seeks economy of effort. The idea is also more efficient from a practical point of view, because it leads directly to action and does not divert and waste energy in diffused and useless movements. The physician simply recognizes the states of mind of his patients, he does not sympathize with them. Finally our own reactions to an objectified emotion may interfere with the emotion. If, for example, we see an angry man, our own fear of him may entirely supplant our sympathetic feeling of his anger. In general, in our dealings with our fellow men, we are too busy with our attitudes and plans with reference to them, and too much concerned with economizing our emotional energy, to get a sympathetic intuition of their inner life, and so are content with an intellectual recognition of it. Now this habit of substituting the more rapid and economical process of judgment for the longer and more taxing one of sympathy, is carried over into the world of art.

Nevertheless, the world of art is a region especially fitted for einfuehlung. For there the need for quick action, which in life tends to syncopate emotion, does not exist. The characteristic attitude of art is leisurely absorption in an object, giving time for all the possibilities of feeling or other experience to develop. Moreover, in art there is not the same saving need for the substitution of idea for feeling as in real life. For in art, feeling is not so strong as in life; even when the artist expresses his own personal experience, he lightens its emotional burden through expression, and we, when we make his experience ours, find a similar relief. The emotion is genuine, only weakened in intensity. In other cases, where the artist constructs a world of fictitious characters and events, our knowledge that they are not real suffices to diminish the intensity of the emotions aroused. For emotions have the practical function of inciting to action, and when action is impossible, as in the purely ideal world of the artist, they cannot keep their natural intensity. We cannot feel so strongly over the mere idea of an event as over a real event. Were it otherwise, who could stand the strain of Hamlet or Othello?

Throughout this discussion of the elements of the experience of art, I have used the terms emotion and feeling with an inclusive meaning, to cover impulses as well as feelings in the narrower sense. For in the aesthetic experience, there are impulses—impulses to move when action is represented in picture and statue, impulses to act, as when, in watching a play, we put ourselves in the place of the persons. But such impulses are always checked through the realization that they come from sources unrelated to our purposes, and fail to get the reenforcement or consent of the total self necessary to action. In reading or singing the "Marseillaise," to cite an example from poetry, I experience all kinds of impulses—to shoulder a musket, to march, to kill—but no one of them is carried out. Now an inhibited impulse is scarcely distinguishable from an emotion. With few exceptions, the impulses in art do not issue in resolves, decisions, determinations to act; or, if they do, the determinations refer to acts to be executed in the future, in an experience distinct and remote from the sthetic—the "Marseillaise" has doubtless produced such resolutions in the minds of Frenchmen; and there is much art that is productive in that way, providing the "birth in beauty" of which Plato wrote. [Footnote: In the Symposium.] In art, impulses result in immediate action only when action is itself the medium of expression, as in the dance, where impulses to movement pass over into motion. Of course such actions still remain aesthetic since they serve no practical end and are valued for themselves.

If the question were raised, which is more fundamental in the aesthetic experience, idea or emotion? the answer would have to be, emotion. For there exists at least one great art where no explicit ideas are present, music, whereas art without emotion does not exist. Take away the emotional content from expression and you get either a mere play of sensations, like fireworks, or else pseudo-science, like the modern naturalistic play. However, the supreme importance of the idea in art cannot be denied. Every complex work of art, save music, is an expression of ideas as well as of feelings, and even in music there exists the tendency for feeling to seek definition in ideas—do we not say a musical idea? And do we not find the masters of so abstract an art as ornament employing their materials to represent symbolic conceptions? I wish to call the attention of the reader to certain very general considerations touching the nature and function of ideas in the aesthetic experience, leaving the study of the concrete problems to the more special chapters.

First, the relation of the idea to the sense medium of the expression. Here, I think, we find something comparable to the process of einfuehlung. For in art, ideas, like feelings, are objectified in sensation. Only sensations are given; out of the mind come ideas through which the former are interpreted and made into the semblance of things. Consider, for example, Rembrandt's "Night-Watch." A festal mood is there in the golds and reds, and gloom in the blacks; but there also are the men and drums and arms. If we wished to push the analogy with einfuehlung, we might coin a corresponding term—einmeinung, "inmeaning." In all the representative arts, this is a process of equal importance with infeeling; for the artist strives just as much to realize his ideas of objects in the sense material of his art as to put his moods there.

When, moreover, we consider that the expression of the more complex and definite emotions is dependent upon the expression of ideas of nature and human life, we see that the process is really a single one. Feeling is a function of ideas; if, then, we demand sincerity in the one, we must equally demand conviction in the other. The poet could not convey to us his pleasure at the sight of nature or his awe of death unless he could somehow bring us into their presence. The painter could not express the moods of sunlight or of shadow until he had invented a technique for their representation. Clear and confident seeing is a condition of feeling. Hence every advance in the imitation of nature is an advance in the power of expression. The demand for fidelity of representation, for "truth to nature," so insistently made by the common man in his criticism of art, is justified even from the point of view of expressionism.

Yet this fidelity of representation does not involve exact reproduction of nature. The limitations of the media of the arts definitely exclude this. No painter can reproduce on a canvas the infinite detail of any object or exactly imitate its colors and lines. In the single matter of brightness, for example, his medium is hopelessly inadequate; even the light of the moon is beyond his power, not to speak of the light of the sun; he has to substitute a relative for an absolute scale of values. The sculptor cannot reproduce the color or hair of the human body. However, this failure exactly to imitate nature does not prevent the artist from suggesting to us ideas of the objects in which he is interested. If the outline of the marble be that of a man, we get the idea of a man; if the color and shape be that of a tree, we get the idea of a tree. Our acceptance of these ideas is, of course, only partial; for we are equally susceptible to the negative suggestions of the whiteness of the marble and the smallness of the outline of the tree. Every work of art represents a sort of compromise between reality and unreality, belief and disbelief.