When the old man at home was buried and dug a grave, he found a chicken. Solve it.

It may be like this: the older generation in rural areas choose a cemetery. After choosing a cemetery, they will first dig a small hole, put something in it and seal it up. After a while (usually 1-3 months or more), drive in and see what's going on. If things are in good condition, it means that there is feng shui here. If things go bad, it means that the feng shui here is not good. You should say that after choosing a cemetery, dig a hole and put an egg that is about to be shelled and some rice to seal the hole. After a long time, the old man forgot about it and didn't explain it to later generations. This strange thing is not strange now.