The poet divided his early years among Dublin, London, and the port of Sligo in western Ireland. Sligo furnished many of the familiar places in his poetry, among them the mountain Ben Bulben and the lake isle of Innisfree. Important influences on his early adulthood included his father, the writer and artist William Morris, the nationalist leader John O'Leary, and the occultist Madame Blavatsky. In 1889 he met the beautiful actress and Irish nationalist Maud Gonne; his long and frustrated love for her (she refused to marry him) would inspire some of his best work. Often and mistakenly viewed as merely a dreamy Celtic twilight, Yeats's work in the 1890s involved a complex attempt to unite his poetic, nationalist, and occult interests in line with his desire to "hammer [his] thoughts into unity." His varied literary output included not only poems and plays but an array of prose forms such as essays, philosophy, fiction, reviews, speeches, and editions of folk and literary material. He also frequently revised his own poems, which exist in various published texts helpfully charted in the Variorum edition (1957). (Bowker Author Biography)