ern dra Those Mingled Seas: The Poetry of W.B.Yeats, the Beautiful and the Sublime. A study of Yeats's aesthetics, in which the writing is profoundly engaged with the inner world of Yeats's poetry. The author's familiarity with the internal stresses of Yeats's vision is grounded in serious and painstaking work in philosophy and literary theory from Kant to Kristeva. The significance and human importance of Yeats's poetry and thought are linked to contemporary issues of morality, politics and sexuality.