There is a very interesting story about Firdausi, the great Persian poet, who has written the Shahnama. One shah of Persia once desired documents of the ancient history of Persia which no one could find; there was only this poet who offered to do so. Everyone wondered how that could be done, but he said: "Wait and you will see." He went to the solitude for ten years and then he came back to the court with his book called Shahnama.