Embracing Reality offers two things, something of a semi-biographical contextualization of the development of Wilber's thoughts and writings, and a series of more-or-less detailed summaries of those same works.  For anyone who is not familiar with the different phases of Wilber's thought, this is a nice reference work, and was most edifying for its picture...

'Higher' is not intrinsically special by itself. Absent movement, and continuous transformation between higher and lower and lower and higher, higher becomes an irrelevant abstraction. But when experience directs us along a particular path, opens new vistas while closing and modifying others, punctuates contexts with more effective inclusivity, and actuates/accentuates the development of new...