"To successfully possess someone, or as you often put it, to borrow a corpse to reincarnate, the most crucial point is that the physical body and the soul must fully match to prevent the body from rejecting the soul."
"For instance, a man and a woman are not compatible, people with the attribute of metal and wood are not compatible, those born at a yang hour and those born at a yin hour are not compatible. Achieving a hundred percent non-rejection is extremely difficult."
Huo Sining was bewildered upon hearing this: "Doesn't this mean that Xiao Yu and Ge Hong must have the same constitution?"
Bai Buzhi smiled bitterly: "It's indeed a coincidence, but I reckon that being a hundred percent identical is impossible; it's highly likely they are similar, which allowed for a successful possession."
"I just realized during my confrontation with that entity that he was somewhat powerless, which I estimate is also related to the mismatch with the body."
