"‘This second time round, she’d discovered that to be happy was not so much a self-sufficient, spontaneous emotion, such as you might feel in relation to a dream or a secret, but a way of reacting to the rest of the world; that to be happy this time, she must curb the natural human instinct to look up at the sky, with its all-encompassing definition, and gaze towards the immediate ground and horizon, with its lack of shape, or abode, or clear ending.’"