Here's an extract from a Zoroastrian document.
“...and they will make a new world,
freed from old age and death, from decomposition and corruption,
eternally living, eternally increasing,
and possessing power at will,
when the dead will rise again,
when life and immortality will come,
…. and when the world will renew itself at its wish”
(Sacred Avesta, lines from the Zamyad Yasht 19)
and then the link editorialises ..
These lines, one of the most beautiful in the sacred Avesta proclaiming the ultimate goal towards which all Zoroastrians efforts are directed: the progress of the world towards total renewal and perfection of existence which occurs at the end of the world and final renovation(the Frashkart)..also according to our beliefs the creations of the great God Ahura Mazda as well participate in bringing the world towards perfection and it is the prayer of every Zoroastrian to be among those who renovate life, towards where all the good creation of Good-spirit grows deathless and the Druj (lies) and evils loose their power and perish, as is the will of the Lord.
The above is from a facebook page on Cyrus the Great.
https://www.facebook.com/Greatest.King.Cyrus
If you'd like to know more about Zoroastrianism, Wikipedia has a reasonable description.
Link: http://en.wikipedia.org/wiki/Zoroastrianism
And commences with:
Zoroastrianism /ˌzɒroʊˈæstriənɪzəm/, also called Zarathustraism, Mazdaism and Magianism, is an ancient monotheistic Iranian religion and a religious philosophy. It was once the state religion of the Achaemenid, Parthian, and Sasanian empires. ...
Zoroastrianism arose in the eastern region of the ancient Persian Empire, when the religious philosopher Zoroaster simplified the pantheon of early Iranian gods into two opposing forces: Spenta Mainyu ("progressive mentality") and Angra Mainyu ("destructive mentality") under the one God, Ahura Mazda ("Illuminating Wisdom").
Zoroaster's ideas led to a formal religion bearing his name by about the 6th century BCE and have influenced other later religions including Judaism, Gnosticism, Christianity and Islam.
We already know that the Jewish elite were exiled in Babylon when Cyrus conquered the city and gave permission for the exiled elite to return to Jerusalem. Some (but not all) did return while many (perhaps even the majority stayed in Babylon and continued to be exposed to Zoroastrian ideas.