Suppose it was autumn, when the heavens rain heavily, and a bubble on the water forms and pops right away. And a person with clear eyes would see it and contemplate it, examining it rationally. And it would appear to them as completely vacuous, hollow, and insubstantial. For what substance could there be in a water bubble?
In the same way, a mendicant sees and contemplates any kind of feeling at all … examining it rationally. And it appears to them as completely vacuous, hollow, and insubstantial. For what substance could there be in feeling?