Gatha: Spenta Mainyu, Esfand 28. This day in the Zoroastrian calendar is recognized as one of the five Gatha days, specifically dedicated to Spenta Mainyu, a section of the Gathas. The Gathas are Avestan religious hymns attributed to Zarathustra, and the last five days of Esfand are each assigned to a different section of the Gathas. On this day, Zoroastrians recite the hymns of Spenta Mainyu and reflect on the ethical and spiritual teachings found in this part of the Gathas. The observance is part of traditional year-end rituals and preparations for Nowruz, holding cultural and religious significance among followers of the Zoroastrian faith.