The Limited Time of Evil
Evil's power is limited; it will be completely destroyed in time.
Angra Mainyu's power exists only within limited time. When the period of mixture ends, evil will be completely destroyed. This is not eternal cosmic war but a battle with a definite end.
Evil has a beginning and shall have an end.
The limitation of evil time ensures ultimate victory of good.
Eschatology
Written about in
- What Zoroastrianism says about good and evil
Evil is given a beginning and an end. The struggle is a period, not a permanent condition of the universe.