Dr. Stephan Harding, a cofounder of Schumacher College (England) and senior lecturer in holistic science, is a pioneering scientist focused on earth sciences, deep ecology, and the theory of Gaia. His work stands on the shoulders of his friend and colleague James Lovelock, the originator of Gaia theory, and microbiologist Lynn Margulis, who bravely championed the idea of symbiosis as a driving force in evolution. In his new book, 'Gaia Alchemy: The Reuniting of Science, Psyche, and Soul,' Harding explores how Gaia manifests itself in human consciousness, feelings, and soul, and how Jungian depth psychology and the history of medieval alchemy can guide us to new insights.