Introduction: People have five poisons and seven emotions, and eight sufferings and nine misfortunes. Good and evil, life and death, reincarnation of cause and effect. Ghosts become human beings, and people turn into demons. There is no end. Day and night are inseparable, humans and ghosts mix, and there are people walking in the world. A soul-suppressing hammer and a requiem gong can suppress evil thoughts and demons, and rest the souls of good thoughts. They circulate endlessly and bear witness to the human heart.