A class on meditation was in process.
The teacher was giving instructions.
"Choose a cozy place, sit in candle light,
pull your back straight, stop flow of thoughts . . . "
"Sir" a student interrupted and asked for excuse.
"I can do all but cannot stop thinking"

The teacher sent him to a junior class.

The student asked his teacher
how to stop the flow of thoughts.
The new teacher answered you learn here
how to keep quiet and not to disturb the class.