Transmission of the Dao: The Zhongli–Lü Dialogue presents a complete, faithful translation of one of the most important classical manuals of Daoist inner cultivation—supported by detailed commentary that guides modern readers through its dense symbolic language. Preserved as a living teacher–disciple conversation between two legendary Immortals, Zhongli Quan (鍾離權) and Lü Dongbin (呂洞賓), the work carries the directness of oral transmission. Lü asks with disarming clarity; Zhongli answers with uncompromising precision. Step by step, the text unfolds the inner-alchemical roadmap: Water and Fire, Dragon and Tiger, Lead and Mercury, the River Cart (河车), Returning the Elixir (还丹), refining the form and Qi, paying court to the Origin (朝元), inner observation (内观), transcendence, and the traditional sequence of verifications that signal real progress. Because the original teaches through layered metaphors—cosmology, trigrams, calendrical timing, the organs, and inner “medicines”—the commentary in this edition explains how the imagery functions as practical instruction rather than abstract philosophy. It clarifies key technical terms, timing methods (year/month/day/hour cycles), stage progression, and common deviations, while also addressing classic Daoist warnings about obstacles on the path, including the Nine Difficulties and Ten Demons. This volume is for readers who want Daoism in its authentic cultivation form: rigorous, method-based, and internally verifiable—made readable by commentary that illuminates the transmission without flattening its depth.