Have you folks heard of Integral Philosophy? I have been reading through one of Ken Wilbur's books and find it very fascinating. He mentions studying typology such as the MBTI as a tool for personal development working with AQAL or all quadrants all levels and also including all lines, all states and all types. Anyway, I really do not know much about Integral Philosophy or the MBTI for that matter but find them fascinating. It seems to be a very comprehensive way of looking at things from many perspectives especially with the four quadrants (see below). Has anyone done any study into this system and how the MBTI fits into it? Thoughts? Opinions?