He (she) is wandering, wandering around, his time is very long, there is always a place to stay, but he is just a passer-by, watching with cold eyes, and eventually the people disperse like birds and beasts. In one story after another, he met one person after another. He was in the story and outside the story, just like singing an opera. After singing a song in the opera, he packed up and went to the next one... Zhuang Zhou dreamed of a butterfly. He didn't know if the butterfly was Zhuang Zhou or if Zhuang Zhou was a butterfly?