Iranian Creation and Mythical Period of Shahnameh

According to the Iranian myths, creation is divided into four periods of: Minu(heaven), Guity(universe), the battle of Ahura with Ahriman(devil) and rebuilding of the universe. These four periods have left most of their symbolism and mysteries in the mythical periods of Shahnameh. Kayumarth period is the memorial of the creation of Minu and Guity wherein human beings possess heavenly features within life and soul. By the murder of Siyamak the third period, that of battle starts and extends to the period of Hushang and Tahmureth when we have the victory of Tahmureth over demons and darkness. This is followed by the fourth period of rebuilding the universe and rejoining Minu.