This is to let the bullet fly in, right? Master Tang means that if you want to kill Huang Shilang, you have to punish your own heart. Master Tang is a clever man. You can't win Huang Shiluo without killing your heart.

What is that whole heart, that is, to make him believe that he lost, and let you give him life as hell. Let others live and die. Completely add his will and destroy his spirit.

I also want to say that it was not Huang Shiro who was killed in the end, but Zhang Mazi, whose brothers all took refuge in Huang Shiro. In addition to Lao Liu and (both dead), Tang touts also secretly colluded with Huang Shilang, and the woman he liked was also sent by Huang Shilang to cheat him. Asako seems to have killed Huang Shirang, but in fact he got nothing and nothing. Finally, he saw Huang Shirang sitting on the train, wearing Mr. Tang's clothes, and heard the voices of brothers and women on the train. He realized that he had lost. He was sure that he had lost. He was dead.