Because water is obtained by melting ice, it can survive in harsh environment, but the state of survival is different, which means that husband and wife will survive well in different ways in any environment.

The moral of carving water on the teapot is that men should moisten everything like water, but they never compete with everything for profit, which shows that husband and wife get along very tolerably. This word has a good meaning, so these words are good. The answer is for reference only, please don't be blindly superstitious.