in a famous exchange recorded in the Aggi-Vacchagotta Sutra, Vacchagotta asks the Buddha whether he has opinions on a number of aspects of existence and the cosmos, for instance, the physical location of a monk after that monk has reached Nirvana. The Buddha refuses to respond to these questions, because as he points out, the questions themselves entail incorrect presuppositions and so trying to answer them will lead to nothing but further confusion. He illustrates his point with an analogy: where does a fire "go" when it is extingushed? The answer is that the fire stops rather than "going" anywhere. Asking where it "goes" introduces a fundamental error of conceptualization and simply invites confusion.