'Mystical theology' has developed through a range of meanings, from the hidden dimensions of divine significance in the community's interpretation of its scriptures to the much later 'science' of the soul's ascent into communion with God. The thinkers and questions addressed in this book draws us into the heart of a complicated, beautiful, and often tantalisingly unfinished conversation, continuing over centuries and often brushing allusively into parallel concerns in other religions. Raising fundamental matters of epistemology, representation, metaphysics, and divine reality, contributors approach the mystical from postmodern, feminist, sociological and historical perspectives through thinkers such as Meister Eckhart, Thomas Aquinas, Catherine of Siena, Ignatius of Loyola, William James, Evelyn Underhill, Ernst Troeltsch, Rudolf Otto, Jacques Derrida, Jean-Luc Marion and Jean-Louis Chrétien. Medieval and early modern radical prophetic approaches are also explored. This book includes new essays by Sarah Apetrei, Tina Beattie, Raphel Cadenhead, Oliver Davies, Philip Endean, Brian FitzGerald, Ann Loades, George Pattison, Simon D. Podmore, Joel D.S. Rasmussen, and Johannes Zachhuber.