1. The meteorite copper in the play is a substance from outer space, which will cause an illusion. People who enter dreamland will see the world where the dead live. The reason why the girl came out of there may be that Mr. Zhong is too persistent.

2. According to historical records, there is a black plum. According to legend, Wuzi of Qing Dynasty was a disciple of Peng Zu, the ancient birthday star in Shang and Zhou Dynasties. He reads widely and writes a lot. It is said that Wu Zi of Qing Dynasty later founded geomantic omen, believing that the location of ancestors' graves would affect the fate of future generations. Therefore, Qing Wuzi is regarded as the first Mr. Feng Shui in China, and people in the field of Feng Shui also regard Qing Wugong as the founder, so the theory of Feng Shui is called "the skill of Qing Wuzi".