into Ahriman, advancing him to be the direct adversary to Ahura Mazda. Additionally, the life force that originates from Ahura Mazda, known as Asha (truth, cosmic order), stands in opposition to Druj (falsehood, deceit). Ahura Mazda is considered to be all-good with no evil emanating from the deity. Ahura Mazda works in gētīg (the visible material realm) and mēnōg (the invisible spiritual and mental realm) through the seven (six when excluding Spenta Mainyu) Amesha Spentas. Terminology The name Zoroaster (Ζωροάστηρ) is a Greek rendering of the Avestan name Zarathustra. He is known as Zartosht and Zardosht in Persian and Zaratosht in Gujarati. The Zoroastrian name of the religion is Mazdayasna, which combines Mazda- with the Avestan word yasna, meaning "worship, devotion". In English, an adherent of the faith is commonly called a Zoroastrian or a Zarathustrian. An older expression still used today is Behdin, meaning "of the good religion", deriving from beh < Middle Persian weh ‘good’ + din < Middle Persian dēn < Avestan daēnā". In the Zoroastrian liturgy, this term is used as a title for a lay individual who has been formally inducted into the religion in a Navjote ceremony, in contrast to the priestly titles of osta, osti, ervad (hirbod), mobed and dastur. The first surviving reference to Zoroaster in English scholarship is attributed to Thomas Browne (1605–1682), who briefly refers to Zoroaster in his 1643 Religio Medici. The term Mazdaism () is an alternative form in English used as well for the faith, taking Mazda- from the name Ahura Mazda and adding the suffix -ism to suggest a belief system. Overview Theology Zoroastrians believe that there is one universal, transcendent, all-good, and uncreated supreme creator deity, Ahura Mazda, or the "Wise Lord" (Ahura meaning "Lord" and Mazda meaning "Wisdom" in Avestan). Zoroaster keeps the two attributes separate as two different concepts in most of the Gathas yet sometimes combines them into one form. Zoroaster also claims that Ahura Mazda is omniscient but not omnipotent. In the Gathas, Ahura Mazda is noted as working through emanations known as the Amesha Spenta and with the help of "other ahuras", of which Sraosha is the only one explicitly named of the latter category. Scholars and theologians have long debated on the nature of Zoroastrianism, with dualism, monotheism, and polytheism being the main terms applied to the religion. Some scholars assert that Zoroastrianism's concept of divinity covers both being