This book is about the emotional language and biological language of the body, which Keleman puts together. He says, "We do not have bodies, we are our bodies. Emotional reality and biological ground are the same and cannot, in any way, be separated or distinguished". Life incarnate is a process of individual human experience manifesting in the body.
I picked this up randomly while staying at Esalen, and discovered that I'd read some passages of it way back in college. The revisit was interesting--this is a very Reichian way of approaching body/mind interaction, and so it's fascinating and true while also being somewhat dated.