In front of you there is a cup. When you drink water from it, it becomes a water cup. When you smoke, it becomes an ashtray. When you insert flowers, it becomes a flower vase.

A cup itself is actually nothing at all—this is called “kouxin.” Whatever you use it for, that’s what it becomes—this is called “miao-yong.”
If you insist on it, then no matter how it is “named,” it is called “xiang.” For this, you’re willing to argue with others and nitpick head-on—this is called “wo zhi.”
As a result, when you nitpick, emotions and insults arise—this is called “fan-nao.” In the end, you develop a distaste for that person—this is called “pian-jian.”
And then you realize: in this world, there are actually no others—only you.
When you are in the world, you exist even more. When you’re gone, the world disappears even more.
Those others, those prejudices, those obsessions, those troubles—are nothing but all kinds of entanglements that your own inner mind brings forth.
So remember: originally, there is nothing at all—where would any dust come from?