It refers to the highest state, just like the character of water, benefiting all things without striving for fame and wealth. The four words "The best is like water" come from Laozi's "Tao Te Ching": "The best is like water." Water is good for all things and does not compete with it. It is disliked by everyone, so it is close to the Tao. Live in a good place, have a good heart, be kind and benevolent, speak good faith, govern well, do good things, and act at good times. The husband does not fight, so there is no need for you. "The highest good is like water. Water is good at helping all things without competing with all things. It stays in places that are disliked by everyone, so it is close to the Tao. People who are good at living should be as content with being humble as water, and their intentions should be like water. Water is as deep as water, making friends is as close as water, words are as sincere as water, politics is as orderly as water, work is as omnipotent as water, and behavior is as ready to act as water. That way there is no struggle with all things, so there are no worries.