"Feng Tang is easy to get old, but Li Guang is hard to seal" is a poem from Tang's Preface to Autumn Farewell. "Bad luck, bad luck, Feng Tang is old, and Li Guang is hard to seal." In a word. Pinyin: féng táng yulǐo, l ǐ gu ǐ ng ná n f ng.

Feng Tang is easy to get old, but Li Guang is hard to seal. These are two allusions. Feng Tang is easy to get old, but it is difficult to succeed when he is old. Li Guang is hard to seal, which shows that he has a high reputation and a good fate.