“Metabolism, he reflected, is a burning process, an active furnace. When it ceases to function, life is over. They must be wrong about hell, he said to himself. Hell is cold; everything there is cold. The body means weight and heat; now weight is a force which I am succumbing to, and heat, my heat, is slipping away. And, unless I become reborn, it will never return. This is the destiny of the universe. So at least I won’t be alone.”