"The partridge nests in the deep forest, but it only has one branch; the rat drinks from the river, but its belly is full." This means that a small bird in the forest, even if there is a vast forest for it to inhabit, it can There is only one branch to build a nest; a little rat drinks water from the river. Even if there are big rivers for it to drink from, it can only fill its belly. Let us think about it, life has an end, How much food can a person eat in a lifetime? How much area can it occupy? Once you lie down on the bed, the place you sleep in is only so big. No matter you live in a 300-square-meter villa or a 1,000-square-meter mansion, your actual They all need the same space as others. Indifference is the most important thing. Xu You has such a peaceful and far-reaching indifferent mind that can even surrender to the world. It is a broad realm and sentiment.