Saoshyant — The Future Savior, World Renewer

The Saoshyant (Avestan: saoshyant, 'one who brings benefit') is the eschatological savior whose coming inaugurates the Frashokereti. The Zamyad Yasht (Yasht 19.92-96) prophesies that he will be born Astvat-ereta ('he who embodies Asha'), conceived from Zarathustra's seed miraculously preserved in Lake Kasaoya and born of a virgin mother. He will raise the dead (ristakhiz), perform the final yasna sacrifice of the bull Hadayans, and prepare the parahaoma draught that confers immortality upon all humanity. The Saoshyant completes what Zarathustra initiated: the prophet revealed the path of Asha, but the Saoshyant enacts its final triumph over Druj, leading the righteous in the last cosmic battle alongside the yazatas and the Amesha Spentas.