I'm really getting better and better at self-brainwashing, although nothing hits me, and I don't think it is. That is, I am establishing my own happiness coordinate system, the horizontal axis is called being able to eat, and the vertical axis is called being able to sleep. Some people may find it funny, how great can it be to eat and sleep? But this is awesome self-brainwashing. Believe that when you can eat and sleep, how many people who take "more money and less money" as the standard will envy themselves at some point, thinking that I can spend a thousand dollars in exchange for a good night's sleep. When you can eat and sleep all the time, I don't even think that no one can beat you. When you think about it before going to bed, you have no worries, you are in happiness, and you don't need to ask for it.