GK Chesterton on Christmas Carols
It is in the old Christmas carols, the carols which date from the Middle Ages, that we find not only what makes Christmas poetic and soothing and stately, but first and foremost what makes Christmas exciting. The exciting quality of Christmas rests, as do all the other examples I have mentioned, on an ancient and admitted paradox. It rests upon the great paradox that the power and centre of the whole universe may be found in some seemingly small matter that the stars in their courses may move like a moving wheel round the neglected outhouse of an inn. And it is extraordinary to notice how completely this feeling of the paradox of the manger was lost by the brilliant and ingenious theologians, and how completely it was kept in the Christmas carols. They, at least, never forgot that the main business of the story they had to tell was that the absolute once ruled the universe from a cattle stall.