The Frawasi or Frawardin Yast (Yt. 13), so called after the respective Avestan and Middle Persian (Pahlavi) names of the group of deities to whom it is dedicated, forms part of the Avestan literature known as Yasts or Hymns. The Frawardin Yast is among the longest Avestan hymns, totaling 158 stanzas, as well as being numbered among the most ancient of the Yasts. Frawardin Yast provides important clues for understanding not only the Zoroastrian religious tradition, but also the old Indo-Iranian religious and mythological world. This volume was previously published by the Jordan Center for Persian Studies, University of California - Irvine.