In the Zoroastrianreligion, saoshyant refers to one who will "make existence brilliant".
"Since He is (the One) to be chosen by the world therefore the judgment emanating from truth itself (to be passed) on the deeds of good thought of the world, as well as the power, is committed to Mazda Ahura whom (people) assign as a shepherd to the poor." --Yasna 27:13, the Ahuna Vairya prayer
Saoshyant refers to "one who brings benefit" in the Zoroastrian religion.
It is speculated that this Zoroastrian belief in a Saoshyant influenced the Jewish — and later Christian — belief in a Messiah.
In Zoroaster's own writings, the Gathas, the term is used to refer to his own prophetic mission and to the community of his followers, who "bring benefit" to humanity.