“According to the Sufi point of view there is only one teacher, and that teacher is God Himself. No man can teach another man. All one can do for another is to give him one’s own experience in order to help him to be successful. For instance if a person happens to know a road, he can tell another man that it is the road which leads to the place he wishes to find. The work of the spiritual teacher is like the work of Cupid. The work of Cupid is to bring two souls together. And so is the work of the spiritual teacher: to bring together the soul and God. But what is taught to the one who seeks after truth? Nothing is taught. He is only shown how he should learn from God. For no man can ever teach spirituality. It is God alone who teaches it. And how is it learned? When these ears which are open outwardly are closed to the outside world and focused upon the heart within, then instead of hearing all that comes from the outer life one begins to hear the words within.”
from http://wahiduddin.net/mv2/VI/VI_8.htm
“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 it oneself. The teacher is only there to guide one towards this revelation. There is only one teacher, and that teacher is God. The great masters of the world were the greatest pupils, and they each knew how to become a pupil.”
from http://wahiduddin.net/mv2/X/X_7.htm