An Inquiry Zoroastrian clericalism in Iran(From Arrival of Islam to Abbasid Failure)

Believers of every religion daresay that their belief is true. Because they defence their beliefs. Priests are proctor in evry religion. Their dutys are protect of beliefs of believers. Zoroastrian priests always try In defense of the Zoroastrian religion, Specially in early centuries of ]slam . They didn’t like any battle with Muslims. Before the Arab invasion, The Sassanid rule supported zoroastrian priests, but in Islamic period they didn’t supporter. Although People of iran didn’t like them, supported them against the Arabs. Gradually, the priests Communicated with Islamic Caliphates and discussed to them. They collected the Zoroastrianism books and wrote new books that are Interpretation of Avesta .They Preached Zoroastrians, taught religious behaviors to evryone how liked zoroastrianism .  Nevertheless Believers in Zoroastrianism obey priests , they sometimes changed their religion and converted to islam. Zoroastrian priests adopted Politics that  Prevented apostasy of Zoroastrians.