Wu Yunqing's Taoist Neidan regimen is divided into ten levels, but now only the first three levels are openly taught by Su Huaren, a disciple of Wu Yunqing. Inner alchemy training time: Chapter 1: oiling and receiving life: Chapter 2: Inner alchemy training time: Chapter 3: Relationship between God and rest: Chapter 4: Gathering fire switch: Chapter 5: Inner alchemy training time: Chapter 6: Week: Chapter 7: Keeping the sacred fetus: Chapter 8: Inner alchemy training time.