How to break the time limit when divination is used?

This problem is problematic. The failure period is a comprehensive inference, and it cannot be predicted solely by Fu Xunkong. There are two kinds of divination, one is divination and the other is mutation. Xunkong is more complicated, full and empty, moving and empty, supporting and moving, and all kinds of situations are complicated and changeable. Generally speaking, there are vacancies, vacancies for grabbing seats, valuable vacancies and compensated vacancies. Can't describe them one by one. But also depends on the understanding of scholars and a lot of practice to understand slowly.