This book adds richly not only to understanding of the unique form of Daoism in Central Hunan today, but to the entire fashi tradition that rose to prominence in the Song–Yuan. In the hills of China’s central Hunan province, an anxious young apprentice officiates over a Daoist ritual known as the Banner Rite to Summon Sire Yin. Before a crowd of masters, relatives, and villagers—and the entire pantheon of gods and deceased masters ritually invited to witness the event—he seeks to summon Celestial Lord Yin Jiao, the ferocious deity who supplies the exorcistic power to protect and heal bodies and spaces from illness and misfortune. If the apprentice cannot bring forth the deity, the rite is considered a failure and the ordination suspended: His entire professional career hangs in the balance before it even begins. This richly textured study asks how the Banner Rite works or fails to work in its own terms. How do the cosmological, theological, and anthropological assumptions ensconced i