Reading this book has been something of a revelation for me. I had long suspected some kind of similarity between jazz music and spiritual nectar (!) and was jubilant to find a book I agreed with so much. There is a real sense of discovery in Kenny's writing which not only discusses what makes jazz and players such as Coltrane and Davis great, but also provides you with attitudes and meditations (on the CD) which could help you to realize that same potential which we all have within ourselves, without having to take heroin or LSD!
I imagine that this book could be a breakthrough read for many players who have either never persevered with their music through frustration or fear, or who feel they have reached an impasse and seek inspiration.