The Master Nan’in accepted a visit from a respected professor that came to inquire about Zen. While serving tea, Nan’in poured the professor's cup full, and continued pouring until the professor could no longer hold back. “It is already full! It is overflowing and no more can go in!”
“Like this cup", Nan’in Said, "you are full of your own beliefs, opinions, and speculation. How can I show you Zen unless you first empty your cup?”
