"But Santa Claus's door was really the front door: it was the door fronting the universe."

In every well-appointed gentleman's house, I reflected, there was the front door for the gentlemen, and the side door for the tradesmen; but there was also the top door for the gods. The chimney is, so to speak, the underground passage between earth and heaven. By this starry tunnel Santa Claus manages -- like the skylark -- to be true to the kindred points of heaven and home. Nay, owing to certain conventions, and a widely distributed lack of courage for climbing, this door was, perhaps, little used. But Santa Claus's door was really the front door: it was the door fronting the universe.

-Manalive (1912)