Three-student communication formula in ancient books

There's nothing wrong with it. The eight characters should be right. It's not just bad luck to die. Need to match the overall weather. There is an old saying: "Old people are most afraid of imperial prosperity, not to mention decline, and middle-aged people are most afraid of death and abortion". But this formula has application conditions. At present, many eight-character forecasters who mainly make money simply can't understand these contents.