I read this book as a young woman in the 70’s. I was seeking spiritual enlightenment and found this book in my father’s library. It totally explained my understanding of how I saw humanity and my own existence within it. I wasn’t content with the explanation that conventional religions offered. I saw the process of evolutionary spirituality as a realistic understanding of what I was experiencing. It helped put me on the path of spiritual awakening that has been my reality ever since. A brilliant book, written by a very progressive and brilliant soul.