According to the website of ancient poetry, literary meaning refers to poetry, and snowy days refer to cold snowy days. Mrs. Xie got together on a cold snowy day and told the children the meaning of the paper. Xie An held a family reunion in the cold snowy day, explaining poems with his sons and nephews. The original sentence comes from Liu Yiqing's Ode to Snow in the Northern and Southern Dynasties.

Yong Xue is an ancient prose in Shi Shuo Xin Yu written by Liu Yiqing, a writer in the Southern Dynasties. It began with an impromptu conversation between Xie An and his nephew in the Eastern Jin Dynasty.