This shows that man in his life in the activity of the world is just like a piece of wood, lifted by the waves of the sea when they rise up, and cast down when they subside. That is why the Hindus have called the life of the world Bhavasagara, an ocean, an ever rising ocean. And man is floating on this ocean of worldly activity, not knowing what he is doing, not knowing where he is going. What seems to him of importance is only the moment which he calls the present; the past is a dream, the future is in a mist, and the only thing clear to him is the present