Much criticism of Dylan Thomas's work relies heavily on the assumption that his poems are an expression of his inner, psychic troubles. This study challenges that assumption. Instead it identifies the sophisticated concept of the possibilities, and limitations, of language that underlies Thomas's complex poetic practices. It brings out the sensuous delight in words that resulted in an exhilaratingly demanding and inexhaustibly innovative poetry. This book emphasises how Thomas conjured with language because he loved its power, when fashioned into a poem, to suggest so much - including the urgent processes of physical being - that existed beyond its reach. In deliberately excluding Thomas the mesmeric man from its attention, the study returns us to Thomas the poet.