Uncover the scientific roots of Indian yoga philosophy through a groundbreaking 1851 treatise by a renowned Bengali physician. This essential text meticulously explores the physiological and psychological effects of Raja and Hatha yoga, offering a unique perspective that bridges ancient wisdom with modern science. Delve into case studies on profound meditation and altered states, illuminating yoga’s deep impact. A must-read for scholars of yoga, seekers of spiritual science, and enthusiasts of India’s ancient contemplative practices eager to understand yoga’s historical and scientific foundations.