In Shahnameh, the Simorgh (phoenix) gave Zal 3 feathers. He said; whenever you are in despair, burn one and make a wish. The first feather was burned when Rostam was born. The second feather was burned and Rostam remained alive. But the third feather was never used. Ferdowsi kept the third feather for the future.... For the day the third feather will burn for Iran.