Nan-in, a Japanese master during the Meiji era (1868-1912), received a university professor who came to inquire about Zen.
Nan-in served tea. He poured his visitor’s cup full, and then kept on pouring.
The professor watched the overflow until he no longer could restrain himself. “It is overfull. No more will go in!”
“Like this cup,” Nan-in said, “you are full of your own opinions and speculations. How can I show you Zen unless you first empty your cup?” ~From Zen Koans
I like to think I like koans, the stories and riddles used by Zen teachers to show their pupils the inadequacy of logical reasoning. I happen to really like the one posted here called, A Cup of Tea, because (I think) I understand it and therefore can learn from it. Other koans like the famous, “What is the sound of one hand clapping?”, lead my mind down twisted paths that soon make me tired. Of course, that is the point, to show us that logical reasoning cannot answer all our questions — sometimes only our intuition can provide an answer.