Del Album" An Other Cup". Yusuf/Cat Stevens. 2006
A spiritual master received a learned man who came to gain deeper insight into the mysteries of life. The master prepared tea. While serving the tea he began to explain, but the learned professor kept on master interrupting with his own opinions. So the master poured his visitor’s cup full, and then kept on pouring. The learned man watched the overflow until he no longer could restrain himself, “It is overfull. No more will go in!” “Like the cup,” the master said, “you are full of your own opinions and speculations. How can I show you anything unless you first empty your cup?” -a famous Zen saying.