The determination of the mot juste, of the right incident in the right place, of exquisiteness of proportion, of the precise tone, hue, and shade that helps unify the whole while it defines a part, is accomplished by emotion. Not every emotion, however, can do this work, but only one informed by material that is grasped and gathered. Emotion is informed and carried forward when it is spent indirectly in search for material and in giving it order, not when it is directly expended.