What's wrong with digging a fish pond and several coffins?

Coffin coffin, promotion and wealth, this is not bad. In some areas, if there are elderly people at home, they will put a coffin in their bedroom. They call it "longevity coffin". There is another kind of building in Hong Kong, whose windows are all coffin-shaped, called "coffin building", which means "official wealth" with the homonym of coffin.