"Father Christmas is not an allegory of snow and holly; he is not merely the stuff called snow afterwards artificially given a human form, like a snowman. He is something that gives a new meaning to the white world and the evergreens; so that snow itself seems to be warm rather than cold. The test therefore is purely imaginative. But imaginative does not mean imaginary. It does not follow that it is all what the moderns call subjective, when they mean false. 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, "Man and Mythologies"