One of the most influential poets of his age, W.B. Yeats eluded the grasp of many who sought to explain him. His life was complex in both its outer and inner events. Yeats's mystical concerns, such as his involvement with spiritualism and construction of a transcendental world system in A Vision, coexisted and occasionally clashed with his active involvement in public affairs. In this classic critical examination of the poet, Richard Ellmann strips away the masks of his subject: occultist, senator of the Irish Free State, libidinous old man, and Nobel Prize winner.