According to a folk song, besides lighting up the road for the gold carp's wedding procession and providing light for the studious but poor Che Yin, these brilliant bottoms also "give father light to plough the fields and brother light to go to Hangchow... give mother light to spin and sister light to weave."
亮晶晶的屁股，除了可以為鯽魚娶親「好心照路」，讓家貧好學，卻買不起燈油的車胤「囊螢夜讀」，還可以「照爹爹、犁大丘；照哥哥，上杭州」；「照媽媽，好紡紗；照姊姊，去織麻」。