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After Emperor Wu of Jin unified the country, he promoted the principle of "governing with filial piety," advocating respect for parents and elders. He intended to appoint Li Mi, a Shangshu Lang from Western Shu, and issued an imperial decree commissioning Li Mi as a Langzhong.
Li Mi was reluctant to become an official, so he submitted a memorial titled "Chen Qing Biao" (Memorial of Plea).
In his plea, he stated that he and his grandmother were interdependent for survival, and her days were numbered, living in a precarious state (朝不保夕). He requested to attend to his grandmother first before taking on an official position.