After his revelation from Ahura Mazda, Zoroaster proclaimed his new faith to his countrymen. He declared that Ahriman corrupted the creation of Ahura Mazda, and enticed men to believe lies. Thus, the good world is mixed with evil. Man has to join the Amesha Spentas through good works, good thoughts, and good words. Although eternal like Ahura Mazda, Ahriman is ignorant and destined to defeat. Upon the death of the individual, their life is judged. The totality of their good and bad deeds are weighed. Each person must cross the bridge of chinvat, the bridge of separation. If one’s good deeds outweigh the bad, the bridge widens and the individual crosses into Paradise, where Ahura Mazda dwells. If the totality of one’s life results in evil being prevalent, then the bridge narrows to a razor’s edge, and the miscreant plunges into hell, a place of darkness, torment, smoke, and misery. Ahriman rules this wasteland of misery. If one’s good and bad remain equal, one goes to a gray existence, experiencing neither joy nor sorrow.11
While Ahriman corrupted the creation of Ahura Mazda, it is Ahura Mazda who possesses the final word. Hinted at in the Gathas, later Zoroastrian doctrine developed the idea of the Saoshyant (one who brings benefit/world savior). Over the final three millennia, three Saoshyants would be sent, each one born of a virgin. The virgin would bathe in a sacred lake where Zoroaster’s seed had been hidden. The final Saoshyant would come at the end of time and lead the righteous against Ahriman and his minions. Evil will be conquered and the Saoshyant will usher Renovation (Frasho-Kereti). Ahura Mazda’s creation will be restored.12
This cosmic drama will be concluded with a general resurrection (both good and evil) and a final judgment. All mankind will be resurrected from the dead.