How to treat this questioning god in Chaoshan area

My grandmother asked me before. Although accurate, don't believe it.

These media are called Miao Tong, which is just the opposite in Chaoshan area. The explanation of Buddhism is that those ghosts and gods with magical powers are possessed by children and girls, and they are very accurate, so that people who ask can feel that their loved ones are back, so as to obtain human support. And divination and astrology. Although they are accurate, just like the weather forecast, your calculations are really accurate at one moment, but they may change the next. Fate consists of life and luck. Life is determined by personal antecedents, and luck can follow fate, so life has innate factors, but what is more important is what you do the day after tomorrow.

If you think this explanation is too far-fetched, you can look at the psychological explanation in the circle of friends.