It's not empty to calculate divination. Is it ok to buy things?

Divination is not empty, it is a common thing in folk divination. In ancient times, when buying and selling, you had to give gifts before you could ask for secrets.

Calculating divination is not empty, which means you have to pay a certain amount. Generally speaking, calculating divination means predicting secrets and paying for them. There are three kinds of situations where you don't need to pay. You don't accept a dying birthday, you don't accept a disaster, and you don't accept a bad luck. This is a folk saying, and the official has no relevant explanation.