This book explores what has been called 'liminal' reality through the categories of anthropology, sociology, history of religions, theology, history of Christianity, neurology and psychology. Liminal reality is that state of being found at the transitional edges of individual and collective experience. It may be found in predictable form, such as the multifarious rites of passage, or in unexpected external or intrapsychic changes. In this book, exterior transitions are correlated with their corresponding intrapsychic movements and potential transformation. Special attention is given to the identity of the liminal person and dynamics which are at work in the liminal domain. The practical dimensions of this book relate to the role of ritual leaders and religious professionals as they guide persons and groups passing through liminal time and space. This includes pastoral care givers in a variety of settings, teachers, and liturgical leaders. The role and identity of the liminal guide is itself addressed and this contributes to an expanded understanding of the complex dimensions of religious leadership.