In present-day Zoroastrian usage, the airyama of these opening words are considered to be an invocation of the divinity Airyaman, the yazata of healing.
(Yasht 1.1-1.3, 3.5-3.6 and 11.3[6]) Also like the ahuna vairya, the airyaman ishya has the power to elicit good thoughts, words and deeds, and so further asha and weaken the druj.
Since its incantation was considered the most effective form of healing (Yasht 3.6), the airyaman ishya was accorded special status in the religion.
(Yasna 54.2) In the Middle Persian literature of the 9th-12th century, the airyaman ishya is described to be the prayer that will be recited by the saoshyans to bring about the final renovation of the world.
Transliteration based on the edition of Karl F. Geldner, Avesta, the Sacred Books of the Parsis, Stuttgart, 1896: Like all Gathic Avestan verses, the prayer is altogether ambiguous and translations vary significantly.