The Iranian Religions from the Beginning up to Now: A Brief Research

This article attempts to highlight the necessity and importance of the great heavently religions, especially Islam and Zoroastrian and to study their mutual effects. Due to the importance of studying the religions role in human social life, this study should be done from a sociological perspective to determine more clearly and explicitly the influence of the great heavenly and divine religions.This article also searches for the important elements shared by Islam and Zoroastrian and finally wants to show that the basic tripartite elements of Zoroastrian,i.e. Pendar-e Nik (good thought), Goftar-e Nik (good words), Kerdar-e Nik (good act) make the theoretical foundation of Islam.