This is a work of "systematic parapsychology." The book aims to construct a framework and system of parapsychology, taking a comprehensive approach to the field. The Outline of Parapsychology states that parapsychology has a different philosophical background from the existing science and religions, and posits that pantheism could be the theoretical basis of parapsychology.

The book also integrates parapsychology with oriental philosophies and New Age movement thought.