Ahriman

Angra Mainyu (/ˈæŋrə ˈmaɪnjuː/; Avestan: 𐬀𐬢𐬭𐬀⸱𐬨𐬀𐬌𐬥𐬌𐬌𐬎, romanized: Aŋra Maⁱniiu) is the Avestan name of Zoroastrianism's hypostasis of the "destructive/evil spirit" and the main adversary in Zoroastrianism either of the Spenta Mainyu, the "holy/creative spirits/mentality", or directly of Ahura Mazda, the highest deity of Zoroastrianism. The Middle Persian equivalent is Ahriman (/ˈɑːrɪmən/; Middle Persian: 𐭠𐭧𐭫𐭬𐭭𐭩, romanized: Ahreman). The name can appear in English-language works as Ahrimanes.

Avestan angra mainyu "seems to have been an original conception of Zoroaster's." In the Gathas, which are the oldest texts of Zoroastrianism and are attributed to Zoroaster, angra mainyu is not yet a proper name. In the one instance in these hymns where the two words appear together, the concept spoken of is that of a mainyu ("mind", "spirit" or otherwise an abstract energy etc.) that is angra ("destructive", "chaotic", "disorderly", "inhibitive", "malign" etc., of which a manifestation can be anger). In this single instance – in Yasna 45.2 – the "more bounteous of the spirits twain" declares angra mainyu to be its "absolute antithesis".

A similar statement occurs in Yasna 30.3, where the antithesis is however aka mainyu, aka being the Avestan language word for "evil". Hence, aka mainyu is the "evil spirit" or "evil mind" or "evil thought," as contrasted with spenta mainyu, the "bounteous spirit" with which Ahura Mazda conceived of creation, which then "was".

The aka mainyu epithet recurs in Yasna 32.5, when the principle is identified with the daevas that deceive humankind and themselves. While in later Zoroastrianism, the daevas are demons, this is not yet evident in the Gathas: Zoroaster stated that the daevas are "wrong gods" or "false gods" that are to be rejected, but they are not yet demons. Some have also proposed a connection between Angra Mainyu and the sage Angiras of the Rigveda. If this is true, it could be understood as evidence for a religious schism between the deva-worshiping Vedic Indo-Aryans and early Zoroastrians.

In Yasna 32.3, these daevas are identified as the offspring, not of Angra Mainyu, but of akem manah, "evil thinking". A few verses earlier it is however the daebaaman, "deceiver" – not otherwise identified but "probably Angra Mainyu" – who induces the daevas to choose achistem manah – "worst thinking." In Yasna 32.13, the abode of the wicked is not the abode of Angra Mainyu, but the abode of the same "worst thinking". "One would have expected [Angra Mainyu] to reign in hell, since he had created 'death and how, at the end, the worst existence shall be for the deceitful' (Y. 30.4)."

Yasna 19.15 recalls that Ahura Mazda's recital of the Ahuna Vairya invocation puts Angra Mainyu in a stupor. In Yasna 9.8, Angra Mainyu creates Aži Dahaka, but the serpent recoils at the sight of Mithra's mace (Yasht 10.97, 10.134). In Yasht 13, the Fravashis defuse Angra Mainyu's plans to dry up the earth, and in Yasht 8.44 Angra Mainyu battles but cannot defeat Tishtrya and so prevent the rains. In Vendidad 19, Angra Mainyu urges Zoroaster to turn from the good religion by promising him sovereignty of the world. On being rejected, Angra Mainyu assails Zoroaster with legions of demons, but Zoroaster deflects them all. In Yasht 19.96, a verse that reflects a Gathic injunction, Angra Mainyu will be vanquished and Ahura Mazda will ultimately prevail.

In Yasht 19.46ff, Angra Mainyu and Spenta Mainyu battle for possession of khvaraenah, "divine glory" or "fortune". In some verses of the Yasna (e.g. Yasna 57.17), the two principles are said to have created the world, which seems to contradict the Gathic principle that declares Ahura Mazda to be the sole creator and which is reiterated in the cosmogony of Vendidad 1. In that first chapter, which is the basis for the 9th–12th-century Bundahishn, the creation of sixteen lands by Ahura Mazda is countered by the Angra Mainyu's creation of sixteen scourges such as winter, sickness, and vice. "This shift in the position of Ahura Mazda, his total assimilation to this Bounteous Spirit [Mazda's instrument of creation], must have taken place in the 4th century BC at the latest; for it is reflected in Aristotle's testimony, which confronts Areimanios with Oromazdes (apud Diogenes Laertius, 1.2.6)."

Yasht 15.43 assigns Angra Mainyu to the nether world, a world of darkness. So also Vendidad 19.47, but other passages in the same chapter (19.1 and 19.44) have him dwelling in the region of the daevas, which the Vendidad asserts is in the north. There (19.1, 19.43–44), Angra Mainyu is the daevanam daevo, "daeva of daevas" or chief of the daevas. The superlative daevo.taema is however assigned to the demon Paitisha ("opponent"). In an enumeration of the daevas in Vendidad 1.43, Angra Mainyu appears first and Paitisha appears last. "Nowhere is Angra Mainyu said to be the creator of the daevas or their father."