What's the matter with Xianpo going to the underworld to find someone?

That's sending troops Fairies have military forces, and these military forces are ancestors and relatives who have learned the aisle. After death, everyone actually lives in another world, and that is the underworld. We live in a sunny world. Xianpo only acts as a connection between the two worlds. If you have been to Xianpo, she needs to recruit soldiers first. After that, she will ask your home address and the owner's name, and then send troops to the address you said. Why does Xianpo know about your past experience? She doesn't know anything else, but your ancestors told her. You say the address, send troops to the address you say, and then ask the ancestors of this family what happened recently and how it happened. And tell you why, and you'll know.