The original texts can be found in the downloadable Abstract below.
According to millenarian doctrine, time is limited to 12,000 years, divided into four main periods of 3,000 years each. During the first tri-millennium, the world exists in mental form. During the second tri-millennium, the material, immobile world is established. At 6000 years, the assault (mp. ēbgat) of the evil Avis, Aŋra Mainiiu, sets the world in motion. During the third tri-millennium, the period is known as the Mixture, as good and evil coexist. Men subsist with difficulty. In 9000, Zaraθuštra brings the daēnā, the dēn, the correct sacrificial manner that will enable men to obtain immortality in the kingdom of Ahura Mazdā. This last tri-millennium begins with the birth of Zaraθuštra and then, with each new millennium a saošiiaṇt will be born until the final saošiiaṇt which will lead the final battle with the final reshaping of the world.
Elements of this doctrine can be spotted in the recent Avesta, but what about in the Gāθās? The Gāθās are complex because it's a text that alludes to processes. To address this question, let's look at Y 44, where stanzas 3 to 7 constitute the only gāthic cosmogony.
