Gatha (Zoroaster)

The Avestan term gāθā (𐬔𐬁𐬚𐬁 "hymn", but also "mode, metre") is cognate with Sanskrit gāthā (गाथा), both from the Proto-Indo-Iranian word *gaHtʰáH, from the root *gaH- "to sing".

They were later incorporated into the 72-chapter Yasna (chapter: ha or had, from the Avestan ha'iti, 'cut'), that in turn is the primary liturgical collection of texts within the greater compendium of the Avesta.

The most abstract and perplexing thought, veiled further by archaic language, only half understood by later students of the seer's own race and tongue, tends to make the Gathas the hardest problem to be attempted by those who would investigate the literary monuments.

These verses, devotional in character, expound on the divine essences of truth (Asha), the good-mind (Vohu Manah), and the spirit of righteousness.

Other verses, from which some aspects of Zoroaster's life have been inferred, are semi-(auto)biographical, but all revolve around Zarathustra's mission to promote his view of the Truth (again Asha).

Yasna 28.1, Ahunavaiti Gatha (Bodleian MS J2)