For over a decade, a small group of scientists and philosophers--members of the Mind and Life Institute--have met regularly to explore the intersection between science and the spirit. At one of these meetings, the themes discussed were both fundamental and profound: can physics, chemistry, and biology explain the mystery of life? How do our philosophical assumptions influence science and the ethics we bring to biotechnology? And how does an ancient spiritual tradition throw new light on these questions?

Pier Luigi Luisi not only reproduces this dramatic, cross-cultural dialogue, in which...