Eight diagrams of copper plate measurement

That's the sixty-four hexagrams of Zhouyi. Three copper coins (ancient coins, the most effective copper coins in Qianlong era), front and back, the side without words is the back, and the side with words is the front. There are six hexagrams in each of the sixty-four hexagrams. Shake it six times and record the results of each shake. Once there are two positive hexagrams, one positive hexagram, two negative hexagrams and three positive hexagrams. Master Zhouyi can predict everything in the future. But first warn the landlord that leaking secrets will be punished by heaven. For example, the money won by gambling with Zhouyi will make the parties suffer and lose money. Until all the money won was broken, the disaster left after a while (the disaster was more serious). For example, predict how someone will die, tell him how he died, and that person knows how to die, so that you can prevent accidents and avoid death. Life and death are doomed, because your prophecy breaks the law of life and death. God will ask your son and daughter to fill in numbers (first, ask you to love the life of the child who hurts the most) to ensure the normal laws of nature. So that's why those Zhouyi masters have no sons. Learning Zhouyi will hurt yourself, so think twice!