There’s an old story about a professor who went to visit a master to learn about Zen. The master poured tea into the professor’s cup until it was full, and then kept pouring. The professor watched until he could not restrain himself. “The cup is full!” he said. “No more will go in!” “Like this cup,” said the master, “your head is full of ideas and opinions. How can I show you Zen unless you first empty your cup?”
