What is the meaning of' official ghost' in divination?

There is a saying of "six relatives" in the Najia law. The so-called six relatives are parents, brothers, wives and wealth, children and grandchildren, and officials and ghosts.

In the prediction of six strategies, if a man asks for an exam, the man in divination regards his girlfriend, wife or woman as "wife wealth"; In divination, women regard their boyfriends, husbands or men as "official ghosts"; If you want to try marriage, you should not only show ghosts, but also show your wife and wealth. You can't hide anything, which shows that Lang is affectionate and your sister is interested (more like a matchmaker to help). If there are other moves in the hexagrams to stimulate the feelings of two people, just like the matchmaker making peace in the middle (as Qi Mei would do), then this marriage will naturally come.