"There is an old Sufi story about philosopher-fool Nasrudin, who was looking for his house keys under a street light. A couple of friends happened by and joined in the search. Finally, in exasperation, one of the friends asked Nasrudin where he thought he had lost the keys. Nasrudin pointed to a spot some distance away where it was extremely dark. But why are we looking here then? he was asked. He replied: Because it is so much easier to see under the light."