Two ways to get an Integral Theory: Ken Wilber's method of integration

Ken Wilber is at times deemed to be one of the most prominent and intellectual integral thinkers of our time. His so-called ‘Integral Theory’ shows up with no minor claims: it alleges to have succeeded in integrating most of the insights elaborated by contemporary natural sciences such as biology and physics, together with those of the social sciences and humanities, especially with the deep truths found in religion as well as in philosophy from the ancient Greeks until today. Wilber started developing his theory in the late 1970s. Today, he presents his theory as a framework that claims to provide no less than a place for everything that exists, including the various scientific disciplines and approaches. The theory seems to provide a proper place for everything. That place is defined first of all by its level of development and its specific perspective, from which it perceives and describes the world. This makes Wilber praise his theory as a downright ‘theory of everything’, being able to provide the long needed integration of the manifold and fragmented bodies of knowledge in our post-modern world. From his holistic theory Wilber derives practical suggestions for a more integral life, an integral practice which consists of meditation, physical exercises and social commitment. In this article the author examines in particular the method that Wilber applies in making up his theory. The main focus lays on the question how it realises the integration, that became the core concept and main label under which his theory is traded today.