Six-year-old Aunt Zhan's parents became ghosts and came back to life. Is it good or bad?

Ghosts represent diseases, and sometimes they don't necessarily represent their own diseases. Paternalism represents auspicious omen in principle, but there are also some cases, such as ghosts are too prosperous, and fathers are filled with prosperous ghosts instead (such as the decline of female prosperous children in Four Pillars)

Also, when a patient is sick, he is also a representative of the disease. It depends on divination. To be honest, it is difficult for Liu Yi to divine when he is ill, which requires a certain foundation.