The guru and the disciple

A guru and his disciple were once having a discussion. The disciple was telling the guru that he had learnt everything he had to learn in life and there was nothing more that he could possibly learn. The guru just listened calmly and offered to continue the discussion over tea.

Two empty cups promptly arrived with a tea pot and the guru started pouring the tea into the cups.

The guru half filled his own cup. However, he kept pouring the tea into the disciples cup even after it became full and tea was flowing out. The disciple challenged the guru and said he as a learned person should know better than to pour tea beyond the capacity of the cup.

The guru now pointed out that after something becomes full, things do not go in anymore. He then pointed out that the disciple himself would have seen the point had he not shut out his mind from learning by thinking he is full when he is not.