In the past, "Yao Wang Pu" recorded: People who have used medicine since this time have used it to burn the skin, carve bones, break the intestines, and penetrate the heart, which is called poison. All poisonous things produce and inhibit each other, which is called the way of heaven. Today, the King of Medicine has listed all the poisons in the world, and everything he has recorded has a solution. The only one is that he has spent his entire life trying not to solve it, which is called a life of nine deaths.