The illustrations provided in this book on how to enhance the spiritual process are very worthwhile. Some of the illustrations show you how to combine sound (vowels), with specific postures and breathing. If you are at all familiar with sound therapy, this book is very much like sound therapy, only better. This book discusses sound therapy, but combines sound with movement and breathing. The actual explanations of esoteric philosophy will bog the reader down very quickly and I did not find it of much practical use. However, I do recommend this book for its illustrations and explanations on how to balance and restore energy, as well as how to enhance and accelerate spiritual consciousness.