Rice and millet, the special language of calligraphy. It refers to Mi Fei, a great calligrapher in the Song Dynasty, and his son Mi Youren, namely "Mi's father and son". Because father and son have made outstanding contributions to calligraphy, people respectfully call them "Migu".
Mi Youren (1074- 1 153) (Southern Song Dynasty) was a Yin man, whose nicknames were Hui, Ao and Er. Huang Tingjian jokingly called him "Tiger" and gave him an ancient seal and a poem: "I have an ancient seal of Hui Yuan, and I can't bear to seal it with Zhulang and Tiger. The late lazy old man, whose ancestral home was Taiyuan, Shanxi, moved to Xiangyang (now Hubei) and settled in Runzhou (now Zhenjiang, Jiangsu). He was the eldest son of Mi Fei and was known as "Xiaomi" in the world. Calligraphy and painting are handed down from family, so they are called "big and small meters" in the world.