Legend has it that there is a hole in the sky, and it rains every day, and someone goes to beg Nu Wa. Nu Wa flew into the sky with the sacred stone in her mouth, sealed the hole in the sky, and the rain stopped, saving everyone. Nu Wa is a snake with a head, that is, cut off her head and put it on a headless snake. Then put the cow's head on the human body at the same time. This is Shennong. Being alive was the only way to get nutrition at that time. Unlike there are so many foods now, you can take them home at the market for a little money and make them delicious.