Why are we used to using water? And think it will be clean after washing? Is it a psychological effect?

Life originated from water, and three quarters of the earth is water. Throughout the birthplace of human civilization, whether it is the birthplace of ancient Egyptian civilization, the Nile valley, the two rivers valley, the birthplace of Mesopotamia civilization, or the birthplace of ancient China civilization, the Yellow River and the Yangtze River valley are closely related to water.

In the traditional culture of China, Confucianism and Taoism are highly respected. Confucianism emphasizes that "a gentleman must observe what he sees when he sees the big water." Laozi praised "goodness is like water", and people who have a way are like water. Why do you say that? Because "water is good for all things and indisputable, water is evil for all, so it is a few words." Water is good for everything without competing with it, and it lives in a low-lying place that people hate, so its behavior almost conforms to the principle of Tao.

Water, colorless, odorless and clear, can wash people's hearts and naturally take away the noise of everything.