Soshyant or Soshyans (word originating from the Avesta period ) meaning liberator and savior.
It is the name of the third son of Zoroaster who will be born from his sperm in the Day of judgment. These three of Zoroaster, Hoshidar, Hoshidar Mah and "Soshyans" appear to organize the chaotic situation of the world. The name of Sushyans is designated as the last savior and the promised one who will also be the last creation of "Ahura Mazda".
Every human being who is able to free people from slavery is considered as a soshyant that will help remove and save people from superstitions and oppressors.
So, each and every one of us joins together with wisdom. We are all saviors.