The Three Calls of the Emperor's Teacher

Chu, called Kokushi, the teacher of the emperor, called to his attendant: `Oshin.'

Oshin answered: `Yes.'

Chu repeated, to test his pupil: `Oshin.'

Oshin repeated: `Yes.'

Chu called: `Oshin.'

Oshin answered: `Yes.'

Chu said `I should apologize to you for all this calling, but really you should apologize to me.'