Ahura Mazda is the chief god in a religion of ancient Persia called Zoroastrianism. The deity is also called Ohrmazd. The god is the creator of all things and the judge of all peoples. Zoroastrians believe that Ahura Mazda is in continuous conflict with the evil spirit Ahriman. At the end of time, Ahura Mazda will triumph and Ahriman will be destroyed. All people must decide whether they will follow Ahura Mazda or Ahriman. They will be rewarded or punished after their death, depending on their choice.