The Eastern student can still gather a handful of gems of insight in this book. The chapters titled, "Awareness, and Meditation: Let it be", are worth reading repeatedly. Here are the gems: (during meditation)"Just be open, with no holding and no center"....."no point of reference"....."Relax and let go of the watcher". "We are able to directly experience mind as a process". "Transitoriness is not a threat at all;it is instead the opening to new horizons". Now for the best gem: "Inherent in the realization that our everyday world is actually always changing is the realization of intrinsic awareness". This book can be read for that single insight. This is the heart of the Buddhist realization.
However it is sad to note that even Tarthang Tulku Rinpoche has resorted to the cliche of the "space between thoughts" as though thoughts are things with spatial location. It is preferable to call it as the time between two thoughts.