Original: In Zoroastrian tradition , the malevolent is represented by Angra Mainyu ( also referred to as '' Ahriman '' ) , the '' Destructive Principle '' , while the benevolent is represented through Ahura Mazda 's Spenta Mainyu , the instrument or '' Bounteous Principle '' of the act of creation .
Simplified: All the bad things are represented as Angra Mainyu , the '' Destructive Principle '' . All the good things are represented by Ahura Mazda 's Spenta Mainyu , the instrument or '' Bounteous Principle '' of the act of creation .