The document discusses William Butler Yeats, one of the 20th century's greatest poets, focusing on his poem 'The Second Coming' written in 1919 amidst the turmoil following World War I and the Irish War of Independence. The poem features powerful imagery and symbolism, depicting a world in disorder and foreseeing a dark new era as symbolized by a beast emerging from chaos, contrasting traditional Christian beliefs. It explores themes of loss, change, and the disintegration of values, suggesting that out of chaos arises something darker and more malevolent.