so that snow itself seems to be warm

Myths are not allegories. Natural powers are not in this case abstractions. It is not as if there were a God of Gravitation. There may be a genius of the waterfall; but not of mere falling, even less than of mere water. The impersonation is not of something impersonal. The point is that the personality perfects the water with significance. 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 snow man. 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.

…Sometimes it would seem that the Greeks believed above all things in reverence, only they had nobody to revere.

…He who has no sympathy with myths has no sympathy with men. But he who has most sympathy with myths will most fully realise that they are not and never were a religion, in the sense that Christianity or even Islam is a religion. They satisfy some of the needs satisfied by a religion; and notably the need for doing certain things at certain dates; the need of the twin ideas of festivity and formality. But though they provide a man with a calendar they do not provide him with a creed. A man did not stand up and say ‘I believe in Jupiter and Juno and Neptune,’ etc., as he stands up and says ‘I believe in God the Father Almighty,’ and the rest of the Apostles Creed. Many believed in some and not in others, or more in some and less in others, or only in a very vague poetical sense in any. There was no moment when they were all collected into an orthodox order which men would fight and be tortured to keep intact. Still less did anybody ever say in that fashion: ‘I believe in Odin and Thor and Freya,’ for outside Olympus even the Olympian order grows cloudy and chaotic.

…It seems clear to me that Thor was not a god at all but a hero. Nothing resembling a religion would picture anybody resembling a god as groping like a pigmy in a great cavern, that turned out to be the glove of a giant. That is the glorious ignorance called adventure. Thor may have been a great adventurer; but to call him a god is like trying to compare Jehovah with Jack and the Beanstalk. Odin seems to have been a real barbarian chief, possibly of the Dark Ages after Christianity. Polytheism fades away at its fringes into fairy-tales or barbaric memories; it is not a thing like monotheism as held by serious monotheists. Again it does satisfy the need to cry out on some uplifted name or some noble memory in moments that are themselves noble and uplifted; such as the birth of a child or the saving of a city. But the name was so used by many to whom it was only a name. Finally it did satisfy, or rather it partially satisfied, a thing very deep in humanity indeed; the idea of surrendering something as the portion of the unknown powers; of pouring out wine upon the ground, of throwing a ring into the sea; in a word, of sacrifice. It is the wise and worthy idea of not taking our advantage to the full; of putting something in the other balance to ballast our dubious pride, of paying tithes to nature for our land. This deep truth of the danger of insolence, or being too big for our boots, runs through all the great Greek tragedies and makes them great. But it runs side by side with an almost cryptic agnosticism about the real nature of the gods to be propitiated. Where that gesture of surrender is most magnificent, as among the great Greeks, there is really much more idea that the man will be the better for losing the ox than that the god will be the better for getting it.

From The Everlasting Man by G. K. Chesterton.