The "white spirit" is not ahura-mazda, and the "dark spirit" is not a hostile intelligence.
ahura-mazda had no control over this Power of evil; all he could do was to baffle him.
He must assist ahura-mazda in the great contest with evil and darkness, and hence he must do something new.
No images of ahura-mazda, or of the Izeds, profaned the severe simplicity of an Iranic temple.
In the first period, ahura-mazda appears as creator of the world and as the source of good.
The antagonism between ahura-mazda and Angro-mainyus is depicted in the strongest colors; it is direct, constant and successful.
I remain standing fast in the statutes of the law which ahura-mazda gave to Zarathustra.
He received for answer that the pronunciation of the twenty different names of ahura-mazda are the best and strongest spells.
Whatever good work ahura-mazda in his benevolence creates, Angro-mainyus steps forward to mar and blast it.
ahura-mazda creates all things good, and the race of men happy and immortal.