I was deeply impressed by this book. I'm not a transpersonal psychologist, just a lay person trying to make sense of the post Jungian world. Jung died in 1961, and I've been trying to plot the trajectory of his legacy. This book is one, the work of Ken Wilber is another. Although aimed at the academic and at times obsessed with the defenition of transpersonal psychology as an academic genre, this work also has much to interest and inform the layman. I was particularly impressed with the insights this book cast upon the nature of evil.