This kind of situation is actually a natural defect of ghosts.
The ones who can turn into ghosts usually died with unresolved obsessions, or had such extreme emotions tugging at them that their soul didn't disperse after death.
Some will dissipate once their obsession is fulfilled, while others persist purely out of malice.
After all, among all intense emotions, malice is the easiest to appear and the easiest for ghosts to cling to.
A vengeful fierce ghost, choking on a mouthful of hate, can barely disperse if they don't get their revenge.
But even so, in the last twenty or thirty years, especially the past decade, the spiritual qi resurgence has sped up.
The Taoist priests from the Three Mountains and Five Ridges, all those people with inherited traditions, their progress has started to become downright terrifying.
