What does it mean to have a flat head for fortune telling?

Is it okay for a fortune teller to be a flat-headed criminal?

In the terminology of fate prediction, in fortune telling, it is said that evil spirits exist 365 days a day, and evil spirits account for a large proportion. What should I do? Let's fix it, you know. A forecaster with a good reputation basically doesn't need it when predicting fortune telling. In other words, your flat head is useless. Fate mainly depends on five punishments and increasing the number of years of luck to judge good or bad luck. Try not to count on it. If a free fortune teller gives you a free prediction, don't go to a roadside stall. Find a fortune teller with a good reputation or a local shop. It's not impossible to find it online, but you can test it in advance. But the cost is high.