It was natural that, as time went on, Dualism should develop itself out of the primitive Zoroastrianism. Language exercises a tyranny over thought, and abstractions in the ancient world were ever becoming persons. The Iranian mind, moreover, had been strack, when it first turned to contemplate the world, with a certain antagonism; and, having once entered this track, it would be compelled to go on, and seek to discover the origin of the antagonism, the cause (or causes) to which it was to be ascribed. Evil seemed most easily accounted for by the supposition of an evil Person; and the continuance of an equal struggle, without advantage to either side, which was what the Iranians thought they beheld in the world that lay around them, appeared to them to imply the equality of that evil Person with the Being whom they rightly regarded as the author of all good. Thus Dualism had its birth. The Iranians came to believe in the existence of two co-eternal and co-equal Persons, one good and the other evil, between whom there had been from all eternity a perpetual and never-ceasing conflict, and between whom the same conflict would continue to rage through all coming time.
It is impossible to say how this development took place. We have evidence, however, that at a period considerably anterior to the commencement of the Median Empire, Dualism, not perhaps in its ultimate extravagant form, but certainly in a very decided and positive shape, had already been thought out and become the recognized creed of the Iranians. In the first Fargard, or chapter, of the Vendidad—the historical chapter, in which are traced the only movements of the Iranic peoples, and which from the geographical point whereat it stops must belong to a time when the Arians had not yet reached Media Magna—-the Dualistic belief clearly shows itself. The term Angro-mainyus has now become a proper name, and designates the great spirit of evil as definitely and determinately as Ahura-mazda designates the good spirit. The antagonism between Ahura-mazda and Angro-mainyus is depicted in the strongest colors; it is direct, constant and successful. Whatever good work Ahura-mazda in his benevolence creates, Angro-mainyus steps forward to mar and blast it. If Ahura-mazda forms a “delicious spot” in a world previously desert and uninhabitable to become the first home of his favorites, the Arians, Angro-mainyus ruins it by sending into it a poisonous serpent, and at the same time rendering the climate one of the bitterest severity. If Ahura-mazda provides, instead of this blasted region, another charming habitation, “the second best of regions and countries,” Angro-mainyus sends there the curse of murrain, fatal to all cattle. To every land which Ahura-mazda creates for his worshippers, Angro-mainyus immediately assigns some plague or other. War, ravages, sickness, fever, poverty, hail, earthquakes, buzzing insects, poisonous plants, unbelief, witchcraft, and other inexpiable sins, are introduced by him into the various happy regions created without any such drawbacks by the good spirit; and a world, which should have been “very good,” is by these means converted into a scene of trial and suffering.
The Dualistic principle being thus fully adopted, and the world looked on as the battle-ground between two independent and equal powers engaged in perpetual strife, it was natural that the imagination should complete the picture by ascribing to those superhuman rivals the circumstantials that accompany a great struggle between human adversaries. The two kings required, in the first place, to have their councils, which were accordingly assigned them, and were respectively composed of six councillors. The councillors of Ahura-mazda—called Amesha Spentas, or “Immortal Saints,” afterwards corrupted into Amshashpands—wore Vohu-mano (Bahman), Asha-va-hista (Ardibehesht), Khshathra-vairya (Shahravar), Qpenta-Armaiti (Isfand-armat), Haurvatat (Khordad), and Ameretat (Amerdat). Those of Angro-mainyus were Ako-mano, Indra, Qaurva, Naonhaitya, and two others whose names are interpreted as “Darkness” and “Poison.”
Vohu-mano (Bahman) means “the Good Mind.” Originally a mere attribute of Ahura-mazda, Vohu-mano came to be considered, first as one of the high angels attendant on him, and then formally as one of-his six councillors. He had a distinct sphere or province assigned to him in Ahura-mazda’s kingdom, which was the maintenance of life in animals and of goodness in man.
Asha-vahista (Ardibehesht) means “the Highest Truth”—“Voritas optima,” or rather perhaps “Veritas lucidissima.” He was the “Light” of the universe, subtle, all-pervading, omnipresent. His special business was to maintain the splendor of the various luminaries, and thereby to preserve all those things whose existence and growth depend on light.
Khshathra-vairya (Shahravar), whose name means simply “possessions,” “wealth,” was regarded as presiding over metals and as the dispenser of riches.
Qoonta-Armaiti (Isfand-armat)—the “white or holy Ar-maiti,” represented the Earth. She had from the first, as we have already seen, a distinct position in the system of the Zoroastrians, where she was at once the Earth goddess and the genius of piety.
Haurvatat (Khordad) means “health”—“sanitas”—and was originally one of the great and precious gifts which Ahura-mazda possessed himself and kindly bestowed on his creatures. When personification, and the needs of the theology, had made Haurvatat an archangel, he, together with Ameretat (Amerdat), “Immortality,” took the presidency of the vegetable world, which it was the business of the pair to keep in good condition.
In the council of Angro-mainyus, Ako-mano stands in direct antithesis to Vohu-mano, as “the bad mind,” or more literally, “the naught mind”—for the Zoroastrians, like Plato, regarded good and evil as identical with reality and unreality. Ako-mano’s special sphere is the mind of man, where he suggests evil thoughts and prompts to bad words and wicked deeds. He holds the first place in the infernal council, as Vohu-mano does in the heavenly one.
Indra, who holds the second place in the infernal council, is evidently the Vedic god whom the Zoroastrians regarded as a powerful demon, and therefore made one of Angro-mainyus’s chief councillors. He probably retained his character as the god of the storm and of war, the destroyer of crops and cities, the inspirer of armies and the wielder of the thunder-bolt. The Zoroastrians, however, ascribed to him only destructive actions; while the more logical Hindoos, observing that the same storm which hurt the crops and struck down trees and buildings was also the means of fertilizing the lands and purifying the air, viewed him under a double aspect, as at once terrible in his wrath and the bestower of numerous blessings.