If truth is to be attained it is only when truth itself has begun to speak, which happens in revelation. Truth reveals itself, therefore the Persian word for both God and truth is Khuda, which means self-revealing, thus uniting God with truth. One cannot explain either of these words. The only help the mystic can give is by indicating how to arrive at this revelation. No one can teach or learn this; one has to learn oneself. The teacher is only there to guide one towards this revelation. There is only one teacher: God; and the great masters of the world were the greatest pupils; they each knew how to become a pupil.