The heart of stillness is a primer on the problems that can and often do surface in spiritual practice. Once we sat out on the path of self discovery, we encounter all kinds of obstacles and pitfalls, not just fear, doubt, and agitation, but also fantasy, tranquility, and ecstasy. Cooper draws on the wisdom teachings of Christianity, Judaism, Buddhism, Hinduism and Islam to show how to avoid becoming snared in any of these mind states.