The Wanderings of Oisin ( oh-SHEEN) is an epic poem published by William Butler Yeats in 1889 in the book The Wanderings of Oisin and Other Poems. It was his first publication outside magazines, and immediately won him a reputation as a significant poet. This narrative poem takes the form of a dialogue between the aged Irish hero Oisín and St. Patrick, the man traditionally responsible for converting Ireland to Christianity. Most of the poem is spoken by Oisin, relating his 300-year sojourn in the isles of Faerie. Oisin was not a popular poem with modernist critics like TS Eliot. However, Harold Bloom defended this poem in his book-length study of Yeats, and concludes that it deserves reconsideration. Source: Wikipedia (en)