This book provides a remarkable range of information on the history, religion, and folklore of the Nāth Yogis. A Hindu lineage prominent in North India since the eleventh century, Nāths are well-known as adepts of Hatha yoga and alchemical practices said to increase longevity. Long a heterogeneous group, some Nāths are ascetics and some are householders; some are dedicated to personified forms of Shiva, others to a formless god, still others to Vishnu.

The essays in the first part of the book deal with the history and historiography of the Nāths, their literature, and...