Mi Fei's calligraphy in Song Dynasty appreciated "Different Stone Post". Mi Fei loves stones, and this biography of History of the Song Dynasty has its own story. Yuan Nizhen has a poem entitled "The Worship of the Stone in Minangong": "Bird loves inkstone and stone, and it is a hobby to explore roses for a long time. The younger brother is full of worship and writes his own pictures, but he knows the name. " According to this poem, Mi Fei was complacent about this hobby, and wrote "Stone Worship" by himself. Later painters were also good at writing this picture, so Mi Fei made a scene by worshipping the stone and became a much-told story.

Mi Fei's "epilepsy" is a major feature of him, which is manifested in all his words and deeds. As a stone idiot, it is manifested in his unusual behavior of loving stones. He neglected his official duties because he was addicted to enjoying the strange stones all day, and was demoted by impeachment several times, but he was still obsessed with the strange stones and had no intention of repentance. Once, as the military supervisor of Wuwei Prefecture, he saw a strange stone in his office and shouted happily, "This is enough for me to worship." So he ordered to change the officer's hat from left to right, knelt down and bowed down with a water board in his hand, and respectfully called this stone "Zhang Shi"

The story spread quickly and people thought his behavior was very interesting. Later, he heard that there was an ugly strange stone on the bank of the river outside the city, so he ordered the chief to move it into the state government office. Mi Fei was very surprised when he saw the stone. He got carried away, knelt down to the ground and said, "I haven't seen you for twenty years!" " On another occasion, he got an inkstone mountain (a naturally formed inkstone with the shape of mountains and peaks) and liked it very much. He slept with it for three days in a row and asked his friend Su Dongpo to write an inscription for it. There are many inkstones and inkstones in Mi Fei's life (there are many inkstones collected by Mi Fei in Xiqing Pu Yin in Qing Dynasty). In a letter to a friend who wanted to get the inkstone from him, he wrote: "It is necessary to cherish the inkstone for insulting teaching. Those who lose the hearts of the people, those who lose the hearts of the people, Xiang Yu bears the brunt. " The inkstone was my first one. Whoever instigated it must have a lot of research. "Thus, the stone is his life.