When I first started reading this book, I thought, "Oh no, Hubert's gone soft on me and is back to the idea of God and conventional metaphysics," but as I read on I was happy to see that this is a very useful and in some ways more accessible elaboration on the ideas of The Supreme Doctrine. His arguments on behalf of humility as the key to Realization are inspiring, and this short book is well worth reading if you're interested in Zen and/or Benoit.