Once upon a time the great Guru O. came to the city of Y.
Immediately a crowd of ardent followers gathered at the temple to listen to his teachings.
O. told his disciples: "The temple is dirty. Clean it".
The enthusiastic pupils earnestly started cleaning and in a short time the temple was neat and tidy.
On the following day Guru O. gave the same order: "The temple is dirty. Clean it."
The disciples went back to cleaning. At the end of the day the temple shone.
On the third morning the great O. for the third time asked his followers to clean the temple.
Puzzled - but full of zeal - the pupils started all over again. The temple was now spotless.
Day after day the great Guru kept repeating his disconcerting order.
At first the disciples thought it was some kind of test, then they got tired and started grumbling and questioning their master's wisdom, finally - sick of the humble task - many left.
Days went by, and followers - disgusted with their guru - went away but the great O. kept giving the same order.
One day the guru went into the temple. There were only a few disciples left, dutifully washing, brushing and sweeping the immaculate temple.
The great O. smiled and said: "Good. Now that we have got rid of the rubbish, we can start working".
His teachings were truly good and the few left disciples turned out to be excellent learners, they made quick progress and they became famous gurus themselves.