Book excerpt: This book explores how each of us knows what we know. It considers claims that we see only illusions and that behind it all there is an indescribably beautiful reality - both a God and a Nirvana. The book goes on to explain in simple terms how these two ideas, so different on the surface, may not be so different at all. Ranging across the centuries the book draws on the teachings of a wide variety of thinkers from vastly different cultural, philosophical and religious backgrounds. The message they each bring is distilled into one consistent story in which our everyday sense of reality can be thought of as a deceptive and rather pale reflection of what's really going on. And although our thinking processes are seriously limited, the book describes how we can all transcend these limitations and experience Ultimate Reality through the simple practice of mindfulness - for mindfulness meditation offers freedom from thinking.