This book helped me finally understand the attraction of Tibetan Buddhism. I have always preferred the simplicity and directness of approaches like Zen; have felt like there were so many bells & whistles in Vadjrana that they get in the way. Now I get why they are used - to create "sudden" awakening. I still don't know if it's the best approach for me, but I found Chogyam Trungpa's talks in this book deepened my understanding of the lineage. I found his explanation of hopelessness gave me a lot more insight than did his student Pema Chodron's. I will continue to read more of his books.