This volume offers an edition and translation of the Avestan text of the Yasna Haptanghaiti (YH), together with an introduction, commentary and dictionary. The commentary surveys and summarizes the scholarly debate about individual Avestan words and expressions, while the introduction offers an analysis of the composition of the YH. Table of contents: I. Introduction 1. The position of the Yasna Haptanghaiti in the Yasna 2. The poetic form of the Yasna Haptanghaiti 3. The composition of the Yasna Haptanghaiti 4. The Yasna Haptanghaiti as an example of Indo-European liturgical poetry 5. The manuscripts of the Yasna Haptanghaiti 6. Arrangement of the present edition II. Text and Translation Yasna 35, Yasna 36, Yasna 37, Yasna 38, Yasna 39, Yasna 40, Yasna 41 III. Edition and Commentary IV. Dictionary V. References VI. Abbreviations VII. Indices Index of Words Index of Passages Index of Names and Subjects