Ahura Mazda

The Behistun Inscription contains many references to Ahura Mazda.

Stater of Tiribazos, Satrap of Lydia, c. 380 BC showing Ahura Mazda

Whether the Achaemenids were Zoroastrians is a matter of much debate. However, it is known that the Achaemenids were worshipers of Ahura Mazda.[8] The representation and invocation of Ahura Mazda can be seen on royal inscriptions written by Achaemenid kings.[9] The most notable of all the inscriptions is the Behistun Inscription written by Darius I which contains many references to Ahura Mazda. An inscription written in Greek was found in a late Achaemenid temple at Persepolis, which invoked Ahura Mazda and two other deities, Mithra and Anahita. Amongst the earliest surviving inscription, on the Elamite Persepolis Fortification Tablet 377, Ahura Mazda is invoked along with Mithra and Apam Napat, Vedic Varuna ("moon-god"). Artaxerxes III makes this invocation to the three deities again in his reign. In Vedic texts which predate these inscriptions by thousands of years, the Vedic gods Mithra and Varuna are frequently mentioned together. In the earliest layer of the Rigveda, Varuna is the guardian of moral law, the ruler over Asuras, one who punishes those who sin without remorse, and who forgives those who err with remorse. He is the Guardian deity of the West, meaning regions west of India.[10][11] He is mentioned in many Rigvedic hymns, such as 7.86–88, 1.25, 2.27–30, 8.8, 9.73 and others.[10][12] His relationship with waters, rivers and oceans is mentioned in the Vedas.[13] Vedic poets describe him as an aspect and one of the plural perspectives of the Agni, one of the Primary deities.[14][15] Further, both have wrathful-gracious aspects in Indian mythology.

The early Achaemenid period contained no representation of Ahura Mazda. The winged symbol with a male figure formerly regarded by European scholars as Ahura Mazda has been now speculated to represent the royal xvarənah, the personification of divine power and regal glory. However, it was customary for every emperor from Cyrus until Darius III to have an empty chariot drawn by white horses as a place for Ahura Mazda to accompany the Persian army on battles. The use of images of Ahura Mazda began in the western satraps of the Achaemenid Empire in the late 5th century BC. Under Artaxerxes II, the first literary reference, as well as a statue of Ahura Mazda, was built by a Persian governor of Lydia in 365 BC.[16]

It is known that the reverence for Ahura Mazda, as well as Anahita and Mithra, continued with the same traditions during this period. The worship of Ahura Mazda with symbolic images is noticed, but it stopped within the Sassanid period. Zoroastrian iconoclasm, which can be traced to the end of the Parthian period and the beginning of the Sassanid, eventually put an end to the use of all images of Ahura Mazda in worship. However, Ahura Mazda remained symbolized by a dignified male figure, standing or on horseback, which is found in Sassanian investiture.[16]

Ahura Mazda (on the right, with high crown) presents Ardashir I (left) with the ring of kingship. (Naqsh-e Rustam, 3rd century AD)

Investiture scene: Anahita on the left as the patron yazata of the Sassanian dynasty behind Emperor Khosrau Parviz with Ahura Mazda presenting the diadem of sovereignty on the right. Taq-e Bostan, Iran.

During the Sassanid Empire, a heretical and divergent[17][18][19] form of Zoroastrianism, termed Zurvanism, emerged. It gained adherents throughout the Sassanid Empire, most notably the royal lineage of Sassanian emperors. Under the reign of Shapur I, Zurvanism spread and became a widespread cult. Zurvanism revokes Zoroaster's original message of Ahura Mazda as the uncreated spirit and the "uncreated creator" of all and reduces him to a created spirit, one of two twin sons of Zurvan, their father and the primary spirit. Zurvanism also makes Ahura Mazda and Angra Mainyu of equal strength and only contrasting spirits.

Besides Zurvanism, the Sassanian kings demonstrated their devotion to Ahura Mazda in different fashions. Five kings took the name Hormizd and Bahram II created the title of "Ohrmazd-mowbad" which was continued after the fall of the Sassanid Empire and through the Islamic times. All devotional acts in Zoroastrianism originating from the Sassanian period begin with homage to Ahura Mazda. The five Gāhs start with the declaration in Middle Persian that "Ohrmazd is Lord" and incorporate the Gathic verse "Whom, Mazda hast thou appointed my protector". Zoroastrian prayers are to be said in the presence of light, either in the form of fire or the sun. In the Iranian dialects of Yidḡa and Munǰī, the sun is still called "ormozd".[16]

In 1884, Martin Haug proposed a new interpretation of Yasna 30.3 that subsequently influenced Zoroastrian doctrine significantly. According to Haug's interpretation, the "twin spirits" of 30.3 were Angra Mainyu and Spenta Mainyu, the former being literally the "Destructive Spirit"[n 2] and the latter being the "Bounteous Spirit" (of Ahura Mazda). Further, in Haug's scheme, Angra Mainyu was now not Ahura Mazda's binary opposite, but—like Spenta Mainyu—an emanation of Him. Haug also interpreted the concept of a free will of Yasna 45.9 as an accommodation to explain where Angra Mainyu came from since Ahura Mazda created only good. The free will made it possible for Angra Mainyu to choose to be evil. Although these latter conclusions were not substantiated by Zoroastrian tradition,[4] at the time, Haug's interpretation was gratefully accepted by the Parsis of Bombay since it provided a defense against Christian missionary rhetoric,[n 3] particularly the attacks on the Zoroastrian idea of an uncreated Evil that was as uncreated as God was. Following Haug, the Bombay Parsis began to defend themselves in the English-language press. The argument was that Angra Mainyu was not Mazda's binary opposite but his subordinate, who—as in Zurvanism also—chose to be evil. Consequently, Haug's theories were disseminated as a Parsi interpretation in the West, where they appeared to be corroborating Haug. Reinforcing themselves, Haug's ideas came to be iterated so often that they are today almost universally accepted as doctrine.[16][20][n 4]