I have read this and a few of other of Hawkins' books, and I have to say that this is the most advanced in his series. Simply reading this book will release years of worry, stress, and problems. The information actually re-contextualizes your life and allows the reader to have many "aha!" moments. It did for me. It is also fairly easy to understand and isn't hard to understand like some ancient spiritual texts that have been distorted by the ego of mankind.