Wilber was born in 1949 in Oklahoma City. In 1983 Wilber married Terry “Treya” Killam who was shortly thereafter diagnosed with breast cancer. From 1984 until 1987, Wilber gave up most of the eye of spirit ken wilber pdf writing to care for her.

It models human knowledge and experience with a four-quadrant grid, along the axes of “interior-exterior” and “individual-collective”. According to Wilber, it is a comprehensive approach to reality, a metatheory that attempts to explain how academic disciplines and every form of knowledge and experience fit together coherently. AQAL is based on four fundamental concepts and a rest-category: four quadrants, several levels and lines of development, several states of consciousness, and “types”, topics which do not fit into these four concepts. Levels” are the stages of development, from pre-personal through personal to transpersonal.

Lines” of development are various domains which may progress unevenly through different stages . Wilber persons may have a temporal experience of a higher developmental stage. Types” is a rest-category, for phenomena which do not fit in the other four concepts. In order for an account of the Kosmos to be complete, Wilber believes that it must include each of these five categories. For Wilber, only such an account can be accurately called “integral”. In the essay, “Excerpt C: The Ways We Are in This Together”, Wilber describes AQAL as “one suggested architecture of the Kosmos”. The model’s apex is formless awareness, “the simple feeling of being”, which is equated with a range of “ultimates” from a variety of eastern traditions.

This formless awareness transcends the phenomenal world, which is ultimately only an appearance of some transcendental reality. According to Wilber, none of them are true in an absolute sense. Only formless awareness, “the simple feeling of being”, exists absolutely. This proposition underlies the whole of his conceptual edifice, and is an unquestioned assumption. Wilber juxtaposites this generalisation to plain materialism, presenting this as the main paradigma of regular science.