Legend has it that Maitreya sits in the sky and ordinary people can receive a lot of food without plowing and shoveling grass. The grain planted in one year can be used for nine years. It can really be said that the grain is abundant and the country is prosperous and the people are safe. People have mountains of food to eat, and women can't find toilet paper, so they lick their children's asses with wheat cakes. The Buddha in the cooker knew about it and reported it to the Jade Emperor. In order to punish mortals, the Jade Emperor sent the longicorn god to descend to earth to sow grass seeds. Tell him to take three steps, and the rest will hit the rock head. I don't know, longicorn is lazy and won't do anything. On earth, just sleeping. Seeing that the deadline is up, I will scatter the grass seeds into the ground step by step, and I will also stuff the extra grass seeds into the hole in the rock head. In this way, the whole world is covered with grass, which leads people to cut and clear it endlessly. Everyone on earth complains that the Jade Emperor is wicked. The longicorn god violated the dogma, and the land god knew about it and reported it to the jade emperor. Hearing this, the Jade Emperor punished Cerambycidae on the spot for being a cow and helping people plow and eat grass. The Jade Emperor sent the silkworm god to take the cattle to the ground and the air. The silkworm god asked, "Niu Ge, what kind of grass did you eat after you came to earth?" Do you eat mulberry leaves? ""eat! Eat whatever grass you want. " The cow went on. Silkworm thought: if I eat mulberry leaves, won't I starve to death? The silkworm threw the cow off its back, and it fell badly, and the upper row of teeth of the cow was gone. Up to now, there are four clear hoof prints on the silkworm's back. The cows in the upper row have no teeth, so they only eat grass with the teeth in the lower row.