When you eat ..

One of the disciples of Buddha and a great Master of Zen, was asked what was it that calmness radiated out of him and he was always full of joy.

Replied he:”  I eat rice when I am hungry and I sleep when I feel sleepy ! ”

“We all do that as well”,  his student said.

“No, No.. when you eat , you think of this and that; and when you sleep you think of this and that.”

“When I sleep, I sleep and when I eat I only eat ” , the Master said.