Every true artist does feel, consciously or unconsciously, that he is touching transcendental truths; that his images are shadows of things seen through the veil. In other words, the natural mystic does know that there is something there, something behind the clouds or within the trees; but he believes that the pursuit of beauty is the way to find it; that imagination is a sort of incantation that can call it up.

G. K. Chesterton: a selection from his non-fictional prose (ed. 1970)