Long Liturgy
| Yasna | |
|---|---|
| Date | Occasion dependent |
| Frequency | Occasion dependent |
The Long Liturgy is a framework, which interprets the main Zoroastrian liturgies, like the Yasna, the Visperad and the Videvdad, as variants of a single liturgical structure. This structure is furthermore seen as the primary ritual of Zoroastrianism originating already during Old Iranian times.