WarYoga: Zurxane - Paperbackby Tom Billinge (Author) The Indo Aryan migration produced two distinct, yet related cultures in the Indian and Iranian peoples. Though similarities abound in their respective traditions, many notable differences reside. Perhaps the most striking is the strict dualism at the heart of Iranian religion. Even prior to Zarathustra, a Cosmic struggle between light and dark delineated bounds of acceptable conduct, reflecting a radically moral understanding