In the universal, all-embracing constitution of things, nothing is without its significance. To be aware that everything has a meaning is necessary to the understanding of art, as indeed of life itself. That meaning, which things symbolize and express, it cannot be said too often, is not necessarily to be phrased in words. It is a meaning for the spirit. A straight line affects one differently from a curve; that is, each kind of line means something. Every line in the face utters the character behind it; every movement of the body is eloquent of the man's whole being. "The expression of the face balks account," says Walt Whitman, "But the expression of a well-made man appears not only in his face, It is in his limbs and joints also, it is curiously in the joints of his hips and wrists, It is in his walk, the carriage of his neck, the flex of his waist and knees, dress does not hide him, The strong sweet quality he has strikes through the cotton and broadcloth, To see him pass conveys as much as the best poem, perhaps more, You linger to see his back, and the back of his neck and shoulder-side." Crimson rouses a feeling different from that roused by yellow, and gray wakens a mood different from either. In considering this symbolic character of colors it is necessary to distinguish between their value for the emotions and merely literary associations. That white stands for purity or blue for fidelity is a conventionalized and attached conception. But the pleasure which a man has in some colors or his dislike for others depends upon the effect each color has upon his emotions, and this effect determines for him the symbolic value of the color. In the same way sounds are symbolic in that they affect the emotions apart from associated "thoughts." Even with a person who has no technical knowledge of music, the effect of the minor key is unmistakably different from the major. The tones and modulations of the voice, quite apart from the words uttered, have an emotional value and significance. Everything, line, form, gesture, movement, color, sound, all the material world, is expressive. All objective forms have their meaning, and rightly perceived are, in the sense in which the word is used here, beautiful, in that they represent or symbolize a spiritual idea.