This cup is like your head

A story is told of a very educated gentleman visiting a well-known Buddhist master to see what he could learn from the spiritual teacher. The holy man poured a cup of tea for the man and kept pouring and pouring until it was spilling all over the floor.

Finally, the man could not sit silently any longer and asked: "Why are you overfilling the cup?" The Buddhist master replied: "This cup is like your head. It is so full that nothing else will go into it. You must empty yourself first in order to learn anything new from me."

And that's worth thinking about.