Wow. This book became mind boggling for me. What is reality, ultimately? Who can define it? Do dreams and fantasy (and drug taking) alter reality? (Not just your reality, but the reality that stitches together the fabric of the universe?) What is real? Are you? Is God? I'll definitely have to reread this one. It became so convoluted and trippy at the end that I lost the fraying strand that I was following. Wow.