Exile is a dream of glorious return. Exile is a vision of revolution: Elba, not St Helena. It is an endless paradox: looking forward by always looking back. The exile is a ball hurled high into the air. He hangs there, frozen in time, translated into a photograph; denied motion, suspended impossibly above his native earth, he awaits the inevitable moment at which the photograph must begin to move, and the earth reclaim its own.