This clearly presented study examines the nature of religious experiences, and asks whether they can be used as evidence for religious beliefs. The author discusses important philosophical issues raised by religious experience, such as the role of models and metaphors in their description, and the way experiences in general are used as evidence for claims about the world. Using contemporary and classic sources from the world's religions, the author gives an account of different types of religious experience. She also draws extensively on psychological, sociological, and philosophical literature to meet sceptical challenges, and concludes that, like most experiences, they are most effective as evidence within an argument which combines evidence from a wide range of sources.