Throughout history, mystics, philosophers, and wisdom traditions from around the world have independently arrived at strikingly similar insights into the nature of the human psyche, the path to healing and wholeness, and the fundamental structure of reality. These recurring patterns and themes, often referred to as the perennial philosophy, point to a universal substratum of human experience that transcends cultural and historical boundaries. In the 20th century, the pioneering work of depth psychologists such as...