Regarding the dynamics of the psyche, the two major concepts in Jungian theory that have been the most difficult for the science-oriented community to accept are the concepts of archetypes and synchronicity. However, they are central to Jung's understanding of a psyche that incorporates a spiritual or non-material perspective. In this two-volume set, John Haule does a masterly survey of the contemporary theory and data from very diverse fields that support the concepts of archetypes and synchronicity. The fields include ethnology, evolutionary biology, archeology, neurobiology, and the history of consciousness, altered states of consciousness, shamanism, and parapsychology. Since cause-effect research is inapplicable to the spiritual field to which these concepts apply, Haule speaks of the ‘consilience’ of the theory and data. The term ‘consilience’ was coined by Edward Wilson, a sociobiologist and researcher at Harvard. It means: ‘when facts and theories from different disciplines