What happens when the calendar says "No Travel" but you have to travel?

You can't work if you follow the calendar. I study the Book of Changes, and there is a saying that "those who know the Book of Changes don't predict", which means that those who know the Book of Changes don't have to do divination, just act according to objective laws. It is said that traveling far is not good. Not everyone is bad. When there are many people in the railway station, most people are safe. On the other hand, there are also accidents in the days when you don't "avoid traveling". We can't generalize. For example, today is a good day to play mahjong and you lose money, but today is a good day to play mahjong and you win money.