 In today's world, most people think of Iran as the home of Islam. What's less well known is that at the time when the Arabs conquered Iran, the Iranians already had been practicing Zoroastrianism for about two millennia. And many of its ideas have influenced Judaism, Christianity and Islam. In our religion, we only believe in one Almighty God. After the arrival of Islam, Zoroastrians gradually became a minority in their own homeland. Others have settled in India, where they became known as Parsis. Up to the present day, Zoroastrians pray to their god, Ahura Mazda, in a language called Avestan. First prayers are Hashem wahuven yatahuverio. This ancient Iranian language is just as old as their religion. Hashem wahuveistem asti ushta asti ushta ahmai yatashai vahistai Hashem. So we should be proud that our forefathers... The key Zoroastrian ritual is the yasna. Yatahuverio yo zouta from Imrute About 50 years ago, the yasna was still performed, but today it is no longer done in Iran and in India only occasionally. So Muya is designed to preserve this ritual by filming and recording a full-length performance. Hashem wahuveistem asti ushta asti ushta ahmai yatashai vahistai Hashem. Two films were made, one recorded with cinema cameras. This two-dimensional film is going to be a multimedia experience. The viewer can read the Avestan words, which the priests recite in subtitles. He can stop the film to read the English translation and watch it in slow motion. When clicking on a ritual implement, the viewer can find an explanation of its function and its significance. The 360-degree film takes the viewer into a virtual reality experience by full immersion. Wearing VR headsets, the viewer experiences the yasna ritual from within the ritual space and can see every little detail. Muya's second approach to the same ritual is through the manuscripts. Zoroastrian priests invented the Avesta script with the sole purpose of writing down the sounds of their sacred texts, whose meaning they had ceased to understand. Muya is producing a multi-volume printed edition of the Avestan text of the yasna with a translation, commentary and dictionary. We are also developing a sophisticated set of digital tools to transcribe, collate and evaluate manuscripts in collaboration with our international partners. Muya is unlocking the meaning of the yasna. It contributes to preserving a valuable cultural heritage so that it is not forgotten.