What is the significance of the life of the fortune-telling prince?

Time before time

abstract

In Hong Kong in the late 1940s, Xu Daguang (Lin Jiadong) made a living and struggled in Guangchanglong's grain and oil wholesale business, which was full of ghosts and strange things. After an accidental collision, he releases Xiao Furong (Kathy Zhou), a female ghost trapped in an oil-paper umbrella. Rong has been waiting for several years for an opportunity to find her husband, Prince Lu of Guangchang, who disappeared in those days.