This article explores the spiritual and existential odyssey of W.B. Yeats, one of the most complex figures of modern poetry, through his relentless pursuit of the divine, the immortality of the soul, and a stable sense of identity. Published in the prestigious daily "The Independent," the piece examines how Yeats transitioned from the romanticized mysticism of the "Celtic Twilight" to a more rigorous, esoteric philosophy in his later years. The research highlights Yeats’s belief that a poet’s identity is inextricably linked to a "Mask" or an anti-self, which he used to navigate the tensions between his public persona and his private spiritual aspirations. By analyzing key poems such as "Byzantium" and "A Dialogue of Self and Soul," the article illustrates Yeats’s struggle to reconcile the decaying physical body with the eternal "artifice of eternity." Central to the discussion is his concept of the "Anima Mundi" (World Soul) and how his engagement with spiritualism, Platonism, and Eastern mysticism provided him with a framework to understand the chaotic nature of contemporary history and his own Irish identity. The article argues that for Yeats, the search for the divine was not a retreat from reality but a profound effort to create a new mythology for a secular age. The study concludes that Yeats's enduring power lies in his ability to articulate the universal human longing for transcendence, suggesting that his search for the soul remains a vital roadmap for those seeking meaning in an fragmented modern world.

Keywords: W.B. Yeats, Mysticism, The Divine, Identity, Soul, Irish Literature, Spiritualism, Byzantium.