Victory is chaos, and saints avoid the world. "The Qin dynasty was cruel and ruthless, disrupting the normal order of the world, and the sages lived in seclusion.
"Since Yunzu avoided the chaos of the Qin Dynasty and led his wife to this desperate situation, he has been isolated from outsiders." According to themselves, their ancestors (in order to) avoid the war in Qin Dynasty, brought their wives, children and neighbors to this isolated place, and never went out from here again, so they stopped interacting with people outside the Peach Blossom Garden.