Marshall makes a strong case for taking mystical experiences seriously as a topic for the philosophy of religion . . . his book [is] of interest for scholars who accept that mysticism is a present, often ignored, and for some, a life-changing feature. Because a considerable amount of humans experience reality’s mystical dimension, constructive scholarship like Marshall’s should be welcomed.

Reading Religion

Four stars: The text is replete with detailed analysis of the rich tradition of non-dualistic thinking and idealism and supported with detailed notes, a comprehensive bibliography, and index. An important contribution to a neglected and unfashionable area of human experience.

Fortean Times

Paul marshalls an amazing range of evidence from across disciplines to defend the thesis that individuals have access to the ultimate nature of reality through mystical experience. . . . Marshall’s book is a tour de force on method, rooted in mystical revelation of reality and in methods that may occasion it.

Journal Of Parapsychology

More than any of the recent spate of books attempting to integrate modern science and spirituality, The Shape of the Soul goes further in illuminating a rational, natural path forward in understanding the nature of humanity's existence, and most especially, the reality of the human soul. Marshall demonstrates an extraordinary depth of knowledge about all manner of human experience, including insightful analysis into how modern quantum physics and relativity might be more fully integrated into a comprehensive worldview. His revolutionary opus, 'reenchanting the world' through Leibniz’s monadology, elucidates the fundamental nature of consciousness, indeed of reality itself, and is an essential read for any true seeker.

- Eben Alexander, M.D., neurosurgeon, author of Proof of Heaven and Living in a Mindful Universe,

Paul Marshall invites us to embark on a supreme adventure of self-knowledge. He articulates a vision of the potential self we all are, a vision of ourselves transformed, in harmony with each other and, crucially, with the natural world. Highly recommended.

- Michael Grosso, independent scholar and author of The Man Who Could Fly: St. Joseph of Copertino and the Mystery of Levitation,

In this remarkable book, Marshall persuasively enchants us with the recognition that we are not a world of separate selves but are all intimately interconnected in a cosmic unity that is our divine self.

- Ralph W. Hood Jr., Professor of Psychology and Leroy A. Martin Distinguished Professor of Religious Studies at the University of Tennessee at Chattanooga,

“Materialism” in its philosophic and socioeconomic guises threatens the very survival of modern civilization, and we desperately need an enlarged conception of nature that can overcome the contemporary alienation between science and spirituality. In this beautifully written book Paul Marshall addresses that need by bringing to bear both an uncommon knowledge of the world’s religious and mystical traditions, directly informed by mystical experiences of his own, and a deep understanding of relevant developments in modern physics. An outstanding contribution.

- Edward F. Kelly, professor of research, Division of Perceptual Studies, University of Virginia, and co-editor of Beyond Physicalism: Toward Reconciliation of Science and Spirituality,

The Shape of the Soul explores the practical message of mystical experience: clues not only to who we are but also to the nature of reality and how we fit into it. Marshall shows us how honoring our mystical potential lifts us out of our self-imposed estrangement from the world and breathes meaning and depth to our lives. This book will put you back in touch with who you really are.

- Bruce Greyson, M.D., Carlson Professor Emeritus of Psychiatry & Neurobehavioral Sciences, University of Virginia,