Volume Three of The Collected Works of Ken Wilber includes:

• A Sociable God: Toward a New Understanding of Religion (1982) is a scholarly introduction to a psychology and sociology of religion that presents a system of reliable methods by which to determine the authenticity of any religious movement.
• Eye to Eye: The Quest for the New Paradigm (1983) examines three realms of knowledge: the empirical realm of the senses, the rational realm of the mind, and the contemplative realm of the spirit. This book includes important essays such as "The Pre/Trans Fallacy" and "A Mandalic Map of Consciousness."