What does it mean for fortune tellers to wear astronomy?

Maybe it's a language habit, for example, strange people wear noble people, that is, strange people combine six noble people and wear astronomy, that is, the mathematics used at that time combined with some theories of astronomy to look at and interpret.

The context of contact sentences may be better understood, or you don't know how to ask people who can speak directly. After all, everyone has a different understanding. This is my understanding and is for reference only.