As far as I know, Guo Huai's pursuit of his wife is a Chinese allusion that may have happened in the Han or Tang Dynasties. The story was about a man named Guo Huai. His wife had suddenly passed away, and he was very sad. In order to recover his lost wife, he spent a lot of time and energy to finally find his wife's whereabouts and bring her back home. This allusion is often used to describe a person who has lost love or property but still persistently pursued his goal and finally succeeded.