““One or two things are all you need to travel over the blue pond, over the deep roughage of the trees and through the stiff flowers of lightning --- some deep memory of pleasure, some cutting knowledge of pain. 6 But to lift the hoof! For that you need an idea. 7 For years and years I struggled just to love my life. And then the butterfly rose, weightless, in the wind. "Don't love your life too much," it said, and vanished into the world.””