From Su Shi's poem to his friend Chen Jichang (
陈季常), whose wife's surname was Liu — and Liu's clan came from Hedong. Su Shi teased: '
忽闻河东狮子吼,
拄杖落手心茫然' ('suddenly the Hedong lioness roars; his cane falls from his hand, his heart all blank'). Hedong + lion = the Buddhist 'lion's roar' (a fearsome sermon) plus the wife's home region.