Lovely. I acquired this book thinking it was going to be your standard adventure novel with a bit of Buddhist philosophy about not getting attached to the result and enjoying the journey. It was that and much more. Matthiessen has an acute knowledge of the area and culture and was eloquent about the dangers of spiritual materialism as well as the knowledgeable about the different religions of the region. He quotes from Sanskrit text and throws in some lovely poetry from various sages across the world. This is a book that one could use as a study guide. Love the fact that he includes end notes, just in case the reader wants a more thorough understanding of some of the old visionaries.