What is the Guanyin earth eaten by hungry people in ancient and modern times?

Legend has it that a long time ago, in the scenic Wuwangshan, a strange disease suddenly became popular. Everyone has stomach acid, nausea, gastrointestinal discomfort and loss of appetite. Doctors in Fiona Fang can't cure it. Helpless, people climbed to the top of the Temple of Heaven for 49 days to help the gods. This move touched heaven, and Guanyin bodhisattva turned into a grandmother on earth to help; She collected soil from the top of the Temple of Heaven, fried dough in the soil, and then gave it to patients. A few days later, they gradually recovered. In order to thank the Bodhisattva, people affectionately call it "Tulaotai", and this kind of dough is called "Tumo", so this kind of soil is named "Guanyin soil". Because this kind of soil is white and fine, it looks like flour, and later people call it "white flour soil". (Tested by Zhengzhou Station of National Food Quality Supervision and Inspection of Light Industry, this soil is rich in potassium, iron, calcium and zinc, so it is a coincidence with legend. The compendium of materia medica records: "stir-fry the wall soil to help the spleen with rustic gas", which is mostly used for diarrhea due to spleen deficiency; "Herbal Mooncherry" records: "Chen Bi is the soil, stealing the true qi and suddenly replenishing the middle jiao", which is used to strengthen the spleen and stop diarrhea. Therefore, "Tu Laotai" steamed bread is an excellent flavor food for people in Wuwang Mountain area to go out for a long trip, entertain guests and give gifts to relatives and friends ~