"Integrative" simply means that this approach attempts to include as many important truths from as many disciplines as possible-from East as well as the West, from premodern and modern and postmodern, from the hard sciences of physics to the tender sciences of spirituality.
Ken WilberSo it is a good idea to start simple, I think, and be very careful. There is a spiritual opening in the Kosmos. Let us be careful of how we fill it. The simplest is: Spirit or Emptiness is unqualifiable, but it is not inert and unyielding, for it gives rise to manifestation itself: new forms emerge, and that creativity is ultimate. Emptiness, creativity, holons.
Ken Wilber