Kenneth Earl Wilber II (born January 31, 1949) is an American theorist and writer on transpersonal psychology and his own integral theory, a four-quadrant grid which purports to … See more

Wilber was born in 1949 in Oklahoma City. In 1967 he enrolled as a pre-med student at Duke University. He became interested in psychology and Eastern spirituality. He left Duke and … See more

All Quadrants All Levels (AQAL, pron. "ah-qwul") is the basic framework of integral theory. It models human knowledge and experience with a four-quadrant grid, along the axes of "interior … See more

Mysticism and the great chain of being
One of Wilber's main interests is in mapping what he calls the "neo-perennial philosophy", an … See more

Wilber's views have been influenced by Madhyamaka Buddhism, particularly as articulated in the philosophy of Nagarjuna. Wilber has practiced various forms of Buddhist meditation, studying (however briefly) with a number of teachers, including See more

Wilber has been categorized by Wouter J. Hanegraaff as New Age due to his emphasis on a transpersonal view. Publishers Weekly has called him "the Hegel of Eastern spirituality".
Wilber is credited with broadening the appeal of a … See more

Books
• The Spectrum of Consciousness, 1977, anniv. ed. 1993: ISBN 0-8356-0695-3
• No Boundary: Eastern … See more