Out of the neglected riches of this dream the poet fetches his wares. He dips into the chaos that underlies the rational shell of the world and brings up some superfluous image, some emotion dropped by the way, and reattaches it to the present object; he reinstates things unnecessary, he emphasizes things ignored, he paints in again into the landscape the tints which the intellect has allowed to fade from it. If he seems sometimes to obscure a fact, it is only because he is restoring an experience. The first element which the intellect rejects in forming its ideas of things is the emotion which accompanies the perception; and this emotion is the first thing the poet restores.
George Santayana, “The Elements of Poetry,” in L. Pearsall Smith, editor, Little Essays Drawn from the Writings of George Santayana, as reprinted in Modern Essays (1921), Christopher Morley, editor.