The idea of a conflict is so distinctive that some people consider Zoroastrianism to be a dualistic religion. Also, as explained in the above section, Zoroastrians believe in the authority of the Avesta and the authority of Zarathushtra as the prophet of Ahura Mazda. Zoroastrian beliefs are reflected in their actions. Unlike many other religions, however, there is no ascetic aspect of Zoroastrianism. Fasting, celibacy, and monasticism are all absent.
Marriage is considered a virtue, and physical cleanliness is valued highly.
Rituals include prayer and the consecration of certain types of food. Furthermore, Zoroastrians believe that fire is the Holy Spirit of Ahura Mazda, and that they can worship Ahura Mazda through the fire. Whether Zoroastrianism is older than Judaism is uncertain. Nevertheless, it has had an undeniable impact upon Western religious belief. None of these ideas are present in original Judaism.