A sagely Zen monk appeared in China around 850 A.D. and died in 916A.D. He said his name was "Knowing This" (ChiChe). No one knew where he came from, he carried a big fat bag and was famous for his fat belly. When asked how to obtain nirvana he would lay down the bag and not said a word. When asked about what happened after reaching nirvana. he would pick up the bag and walk away, still not a word.