"mizhi poyi Suidehan, Wayaobao Slate Qingjian Charcoal" is a jingle introduction of Shaanxi folk songs to Shaanxi Four Treasures. Rice fat, called "Yinzhou" in ancient times, was named after "there are rivers flowing in the territory, fertile soil is suitable for millet, and rice juice is like fat". The rice mentioned here is millet, and the millet with rice fat is golden yellow. When boiled into millet porridge, there will be a faint layer of oil floating on it, and the aunts who grew up eating this millet will be as beautiful as flowers and as beautiful as jade, and their skin will be as coagulated as fat. There are different opinions about the beauty of mizhi poyi. There are some lyrics in Xintianyou: bright eyebrows, solid body, black braids and flashing eyes.
Mizhi's aunt is not as slim and enchanting as Jiangnan beauty, but they are handsome and elegant, good at singing and dancing, intelligent and capable, and have become outstanding representatives of women in northern Shaanxi. Mizhi County is nicknamed "Zhangren County" in northern Shaanxi, because many beautiful women have married dignitaries from all over the country. It means that Mizhi women are born beautiful and full of beauty, while Suide men are brave and handsome and full of masculine beauty. The Story Of Diu Sim, a great beauty in The Romance of the Three Kingdoms (this is a real figure never seen in history, and The Story Of Diu Sim is just a crown) and Lu Bu, the first warrior, are Mizhi and Suide respectively.