A critical work about one of the leading figures in modern poetry, this book shows how Yeats perfected great songs - "Crazy Jane on the Day of Judgment", "Three Things", "After Long Silence", "Her Triumph" - and great choruses - "Colonus' Praise", "From 'OEdipus at Colonus'" and "From the 'Antigone'". The author follows the manuscript development of each poem to discover its full context in life and culture, to illuminate obscurities in the finished text, or simply to witness in amazement the emergence of a true poem from a tangle of abstractions. As a result, the reader is given original and interesting interpretations of the songs and choruses as final works of art.