Duke Zhou dreamed of digging a grave and a coffin, in which lay a new emperor.

I think during the day and dream at night. Coffin, coffin, promotion and wealth. Want to get rich, have connections or be an official. If you want to be an official, you need the approval of the emperor. Dreaming that there was money in the coffin, the emperor became an official. It's a pity that you are a dead emperor, which also means that you can make a fortune recently, but you may not be promoted or an official.