Byron, Keats and Shelley lived short lives, but the radical way they lived them would change the world. At 19, Shelley wrote The Necessity of Atheism - it was banned and burned, but it freed the Romantics from religion. Through their search for meaning in a world without God, they pioneered the notions of free love, celebrity and secular idolatry that are at the centre of modern Western culture. For them poetry became the new religion, a way of reaching eternity.