White clothes see Jing Ke off. On the one hand, it shows that there are many generous and sad people in the land of Yan and Zhao, and encourages Jing Ke to strengthen his career. It means that the strong man will never be seen again. He knows that his departure will bring bad luck, so he is sent away in white clothes. Another point is that it really manifests as the consciousness of saying goodbye to Jing Ke and saying goodbye forever. When Jing Ke goes away, whether he succeeds or fails, his body will die but his soul will never die.