Emmanuel Falque, one of the foremost philosophers working in the continental philosophy of religion today, takes us by the hand into the very heart of 12th-century monastic spirituality. Translated into English for the first time, The Book of Experience weaves together contemporary phenomenological questions with medieval theology, revealing undiscovered dialogues already underway between Hugh of St. Victor and Maurice Merleau-Ponty, between Richard of St. Victor and Emmanuel Levinas, between Aelred of Rievaulx and Michel Henry, and not least between Bernard of Clairvaux and the trio of Descartes, Heidegger, and Jean-Luc Marion, consummating in a masterful phenomenological reading of Bernard's sermons on the Song of Songs. Whether it is a question of 'the idea that comes to God' (Anselm of Canterbury) or actively 'feeling oneself fully alive' (Aelred of Rievaulx or Bernard of Clairvaux), Falque uses these encounters to shed light on both parties, medieval and modern, theological and philosophical. Leading us through works of art, landscapes, architectures, and liturgies, this major contemporary philosopher of religion clarifies mysteries and discovers experience lying at the heart of the medieval tradition. How does God enter into finite human thinking and feeling? Like the wise householder sharing treasures old and new, Emmanuel Falque shows how Christian monasticism remains a surprisingly fresh interlocutor today. A master class in the precise, generous listening to the premodern past that is renewing theology and phenomenology alike.