symmetry, naturalism and ethics in ancient iran

Ancient iranians often believed in gods, from the median and parthian periods to the persians, worshiping various goddesses and they believed that the phenomena in nature are managed by special guards. because the political governments in ancient iran were religious in nature, with the rise and fall of the central governments, the believers in the old religion decreased and the number of followers of the religion attributed to the new government increased. in these social actions and reactions, as the power of the central government increased, theoretical ethics spread, and during authoritarian regimes, the tendency towards nature and practical mysticism intensified. in all these eras, due to lack of access, the earthly goddesses replaced the one true god and created secondary goddesses for each of the natural symbols such as the sun, water, earth, and made it the guardian and revolver of the creator of the universe. this research has been done by library method and by content analysis method on existing documents from that period. the results show that the common symmetry at that time led to dualism, and pure naturalism led to polytheism, but following rational reasoning and metaphysical reasons could be the common denominator of different religions in this long period of human civilization..