One of the most famous of spiritual fools is Mulla Nasrudin, who is especially popular in the Arabic world. The muslim mystics use stories about Nasrudin as spiritual lessons, giving him the role of either village idiot or eccentric sage. In the following story Nasrudin plays the great fool, teaching crazy wisdom to the people.
When Nasrudin was asked to speak to the congregation at the mosque, he went up to the front and asked, "Oh people, do you know what I have come to tell you?" The crowd answered, "NO."
Nasrudin then said, "If you don't know what I have come to tell you, then you are too ignorant what I was going to say." And he left the mosque. But the people knew he had great wisdom, so they invited him back the next week. This time when Nasrudin asked the congregation if they knew what he was going to tell them, the crowd answered, "Yes." "Fine," said Nasrudin, "then I don't need to waste your time. " And once again he left the mosque. But once again the people invited him back, thinking the next time they could convince him to talk. When he arrived on the following week, Nasrudin again asked the congregation if they knew what he was going to tell them. This time, half of the people answered back "Yes", and half of them answered back "No." "Fine," said Nasrudin, "then those who know should tell those who don't know, and Nasrudin left the mosque.