A Treatise on the Yoga Philosophy 

A Treatise on the Yoga Philosophy, first published in 1851, is a groundbreaking work that bridges yoga and modern science. A Bengali physician, Paul examines the physiological and psychological effects of Raja and Hatha yoga, describing it as a form of prolonged sleep and linking it to changes like hypercapnia. He includes case studies of individuals experiencing deep meditative states resembling hibernation. The treatise significantly influenced Western views on yoga and sparked debates within both Indian and Anglo-Indian medical communities.