What does an official ghost mean? My mother's fortune-telling said to guard against officials and ghosts or something. . .

Divination terminology. According to that family's method, fortune tellers allocate branches and leaves to six hexagrams and five elements to eight diagrams, and use the branches and leaves of six hexagrams and five elements of eight diagrams to determine the orientation of parents, descendants, officials, ghosts, wives, wealth and brothers. Those who gave birth to me are parents, those who gave birth to me are descendants, and those who deny me are official ghosts. Official ghosts are also called official evil spirits and official killings. In the Southern Dynasties, Chen wrote "Answering the Official Book": "The five elements have the words of post horses and the words of officials and ghosts. It is bound to make the post horse hair from time to time, the official ghost wins the body, and hopes to succeed. If not, it will be difficult to reconcile. Can you turn Shangshu into an official ghost and drive an old servant into a post horse? " The first time in A Dream of Red Mansions: "Now, for the first time, God is used to treat the mother. It's really parents who want to get rid of officials. There is also a layer of official ghosts on the fifth floor. I think your mother's wife is very ill. "