Sraosha — "Obedience," or "Hearkening" — was the yazata of attentive listening to the divine word, of religious obedience, of the discipline by which the worshipper aligned himself with the will of Ahura Mazda. He was particularly the protector against the demons of the night: when the sun set and the world was in darkness, Sraosha rode upon his chariot to guard the righteous from the assaults of the daevas. He carried a great mace, the symbol of his power against demons; he stood always on alert; he never slept.
Sraosha had a special role in the post-mortem judgment of souls. When a human being died, his soul lingered for three days near the body, contemplating its life. On the dawn of the fourth day the soul was conducted to the Chinvat Bridge — the Bridge of the Separator — where the dead were judged. There Sraosha stood with two other yazatas, Mithra and Rashnu (the latter to be treated below), to oversee the judgment. The righteous soul found the bridge wide and easy to cross, and was met on the far side by a beautiful maiden (his own daena, his religious conscience, made personally visible) who led him to paradise. The wicked soul found the bridge thin as a razor; he fell from it into hell, where he was met by an ugly hag (his own daena in her degraded form) who led him to torment.
Sraosha's function as protector and as judge made him the closest of the yazatas to the daily life of the worshipper. He was invoked at the boundary moments — at sunset, at dawn, at the moment of falling asleep, at the death of a relative. The Sraosha Yasht (Yasna 57) is one of the most-recited prayers in the Zoroastrian liturgy, and his name appears in numerous Iranian personal names through history (Old Persian Suxra-, Middle Persian Surōs).
After the Islamic conquest, Sraosha's name in the form Surōsh / Sorush was preserved in Persian poetic and folk tradition as the angel of inspired speech, who came to the poet at moments of inspiration to whisper in his ear. The Persian poets of the Islamic period invoke Sorush in this sense — the inner voice of poetic and prophetic insight — long after the formal religion of Iran had changed.



