This profound exploration delves into the core of Martin Heidegger's later philosophy, specifically examining the intricate relationship between ontology and the hermeneutics of eventfulness. Heidegger famously moved beyond traditional metaphysics, seeking to re-articulate the question of Being. Here, the concept of 'event' (Ereignis) is central, representing the happening or appropriation of Being itself. The book meticulously unpacks how Dasein's existence is fundamentally intertwined with these transformative events, offering a radical reinterpretation of truth, time, and the very nature of human existence within the horizon of Being. It is a critical examination for anyone interested in continental philosophy, phenomenology, and existential thought.