If we turn from human history to nature . . . we see that revolution, in the sense of a renewal of energy and the power to live, is not haphazard but cyclic. The light dies every day, vegetable life every winter and human life at the end of a finite period; the sun rises again, the year returns and new babies are born. Perhaps the first and most fundamental effort of the imagination in this vegetable world, the primary outline of all religion and art, is to see in the death of a man or in the decline of the day and year an image or reproduction of the original Fall, and in the return of human and natural life an image or prototype of the ultimate resurrection.