John Muir: Spiritual Writings is a part of Orbis Books' Modern Spiritual Masters Series. A Scottish-born American naturalist and founder of the Sierra Club, John Muir lived for years in the wilderness, experiencing a deep communion with the sacred. His letters, journals, and other writings explored here are grounded in a deep spirituality. This volume contributes to a distinctly American strain of spirituality that finds an echo in today's ecological movement.