The s (s) are a collection of twenty-one hymns in
Younger Avestan. Each of these hymns invokes a specific
Zoroastrian divinity or concept. Yasht chapter and verse pointers are traditionally abbreviated as Yt.The word yasht derives from Avestan yešti, "worship by praise," and several hymns of the
Yasna liturgy that "worship by praise" are - in tradition - also nominally called yashts. These "hidden" Yashts are: the
Barsom Yasht (Yasna 2), another
Hom Yasht in Yasna 9-11, the Bhagan Yasht of Yasna 19-21, a hymn to
Ashi in Yasna 52, another
Sarosh Yasht in Yasna 57, the praise of the (hypostasis of) "prayer" in Yasna 58, and a hymn to the
Ahurani in Yasna 68. Since these are a part of the primary litury, they do not count among the twenty-one hymns of the Yasht collection.
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[Persian] A hymn, a song of praise for one of the ancient Persian gods.