I believe, however, that the justification of this apparent heterogeneity, and the basis for explanation, is given in the reduction of all elements to their lowest term,—as objects for the expenditure of attention. A large object and an "interesting" object are "heavy" for the same reason, because they call out the attention. And expenditure of effort is expenditure of attention; thus, if an object on the outskirts of the field of vision requires a wide sweep of the eye to take it in, it demands the expenditure of attention, and so is felt as "heavy." But what is "the expenditure of attention" in physiological terms? It is nothing more than the measure of the motor impulses directed to the object of attention. And whether the motor impulse appears as the tendency to follow out the suggestions of motion in the object, all reduces to the same physiological basis.

It may here be objected that our motor impulses are, nevertheless, still heterogeneous, inasmuch as some are toward the object of interest, and some along the line of movement. But it must be said, first, that these are not felt in the body, but transferred as values of weight to points in the picture,—it is the amount and not the direction of excitement that is counted; and secondly, that even if it were not so, the suggested movement along a line is felt as "weight" at a particular point.

From this point of view the justification of the metaphor of mechanical balance is quite clear. Given two lines, the most pleasing arrangement makes the larger nearer the centre, and the smaller far from it. This is balanced because the spontaneous impulse of attention to the near, large line equals in amount the involuntary expenditure to apprehend the small, farther one.

We may thus think of a space to be composed as a kind of target, in which certain spots or territories count more or less, both according to their distance from the centre and according to what fills them. Every element of a picture, in whatever way it gains power to excite motor impulses, is felt as expressing that power in the flat pattern. A noble vista is understood and enjoyed as a vista, but it is COUNTED in the motor equation, our "balance," as a spot of so much intrinsic value at such and such a distance from the centre. The skillful artist will fill his target in the way to give the maximum of motor impulses with the perfection of balance between them.

It is thus in a kind of substitutional symmetry, or balance, that we have the objective condition or counterpart of aesthetic repose, or unity. From this point of view it is clearly seen in what respect the unity of Hildebrand fails. He demands in the statue, especially, but also in the picture, the flat surface as a unity for the three dimensions. But it is only with the flat space, won, if you will, by Hildebrand's method, that the problem begins. Every point in the third dimension counts, as has been said, in the flat. The Fernbild is the beginning of beauty, but within the Fernbild favorable stimulation and repose must still be sought. And repose or unity is given by symmetry, subjectively the balance of attention, inasmuch as this balance is a tension of antagonistic impulses, an equilibrium, and thus an inhibition of movement.

From this point of view, we are in a position to refute Souriau's interesting analysis<1> of form as the condition for the appreciation of content. He says that form, in a picture for instance, has its value in its power to produce (through its fixation and concentration of the eye) a mild hypnosis, in which, as is well known, all suggestions come to us with bewildering vividness. This is, then, just the state in which the contents of the picture can most vividly impress themselves. Form, then, as the means to content, by giving the conditions for suggestion, is Sourieau's account of it. In so far as form—in the sense of unity—gives, through balance and equilibrium of impulses, the arrest of the personality, it may indeed be compared with hypnotism. But this arrest is not only a means, but an end in itself; that aesthetic repose, which, as the unity of the personality, is an essential element of the aesthetic emotion as we have described it.

<1> La Suggestion en l'Art.

VI

There is no point of light or color, no contour, no line, no depth, that does not contribute to the infinite complex which gives the maximum of experience with the minimum of effort and which we call beauty of form. But yet there is another way of viewing the beautiful object, on which we touched in the introduction to this chapter. So far, what we see is only another name for HOW we see; and the way of seeing has proved to contain enough to bring to stimulation and repose the psychophysical mechanism. But now we must ask, what relation has meaning to beauty? Is it an element, coordinate with others, or something superposed? or is it an end in itself, the supreme end? What relation to the beauty of form has that quality of their works by virtue of which Rembrandt is called a dreamer, and Rodin a poet in stone? What do we mean when we speak of Sargent as a psychologist? Is it a virtue to be a poet in stone? If it is, we must somehow include in our concept of Beauty the element of expression, by showing how it serves the infinite complex. Or is it not an aesthetic virtue, and Rodin is great artist and poet combined, and not great artist because poet, as some would say? What is the relation of the objective content to beauty of form? In short, what place has the idea in Beauty?

In the preceding the place of separate objects which have only an ideal importance has been made clear. The gold-embroidered gauntlet in a picture counts as a patch of light, a trend of line, in a certain spot; but it counts more there, because it is of interest for itself, and by thus counting more, the idea has entered into the spatial balance,—the idea has become itself form. Now it is the question whether all "idea," which seems so heterogeneous in its relation to form, does not undergo this transmutation. It is at least of interest to see whether the facts can be so interpreted.