It is impossible for a person to have stable emotions; the core of emotional stability is to be as unfeeling as water. Laozi said that the highest good is like water, which is the closest to the way of heaven. The way of heaven is unfeeling, so water is also unfeeling. Unfeeling does not mean being unkind or heartless. What is unfeeling? Having no desires is called unfeeling; unfeeling means lacking the human desires and emotions. For example, why can’t all teachers and parents treat children fairly? Because of bias; where there is affection, there will be emotions. Therefore, having no affections guarantees absolute fairness, and being unfeeling allows for natural non-action. It is precisely because water is unfeeling that it can accommodate all things. You see, there are mud and sand in water, as well as clear springs; water can coexist with them, and ultimately, through sedimentation, water becomes clear. Anger, sadness, and anxiety are like mud and sand, while happiness, joy, and satisfaction are like clear springs. A truly emotionally stable person does not lack negative emotions; rather, they understand their existence and accept all emotions just as water accepts mud and clear springs, ultimately leading to emotional stability through their own understanding and sedimentation. Thus, unfeeling is the highest good; only by being unfeeling can one achieve the hardest core of emotional stability. Having no desires is called unfeeling, and unfeeling can break the entire situation; this is the power of the highest good being like water.