My father gave me a copy of "Crazy Wisdom" on my twelfth birthday. I am now 20 years old, and I still struggle with the enormity of what this book implies. I have read it several times, left it behind, returned to it with new experiences and gained new insights. Basically, the book contains Tibetan philosophical wisdom, but it is infinitely more. I'd recommend this book to everyone who is interested in philosophy (and in particular Oriental and Tibetan). The book is a powerful and relatively understandable introduction to contemporary Tibetan philsophers, based largely on Buddhism, but the religious aspect of the book is negligible. This is not a cheap "This will change your life" scam, but contains some serious and powerful methods of working with the mind.