There is freedom from desire and sorrow at the end of the way. The awakened one is free from all fetters and goes beyond life and death. Like a swan that rises from the lake, with his thoughts at peace he moves onward, never looking back. The one who understands the unreality of all things, and who has laid up no store - that one's track is unseen, as of birds in the air. Like a bird in the air, he takes an invisible course, wanting nothing, storing nothing, knowing the emptiness of all things.

-- The Buddha, Dhammapada