Master Wu -- Understanding the sword -- The wider context -- Tieguai, the earliest immortal -- Zhongli Han, subduer of the white tiger -- Lü Dongbin, the supreme swordsman -- Zhang Guolao, the old sorcerer -- Lan Caihe of the lotus flower -- Han Xiangzi, the gentleman -- Cao Guojiu : full or empty, or both? -- He Xiangu, the lady immortal -- Practice -- Basic set-up -- Instructions.