Yasna

…of a central ritual called yazna, which corresponds in a great many details to the Vedic yajña. It is interesting to note that both rituals, though they have undergone some changes over the millennia, are still performed by Zoroastrians and Hindus in what must be the oldest continuously enacted ritual…

…part of the canon, the Yasna, which contains the rite of the preparation and sacrifice of haoma. The Visp-rat is a lesser liturgical scripture, containing homages to a number of Zoroastrian spiritual leaders. The Vendidad, or Vidēvdāt, is the main source for Zoroastrian law, both ritual and civil. It also…

…texts are embedded in the Yasna, which is one of the main divisions of the Avesta and is recited by the priests during the ceremony of the same name, meaning “sacrifice.” The Visp-rat (“All the Judges”) is a Yasna augmented here and there by additional invocations and offerings to the…

The chief ceremony, the Yasna, essentially a sacrifice of haoma (the sacred liquor), is celebrated before the sacred fire with recitation of large parts of the Avesta. There also are offerings of bread and milk and, formerly, of meat or animal fat.