The following essay is about Mazdians norms of death and the custom relating to it of course. Knowledge of death and the ritual of
burial of deaths are based on ancient Avesta (old and new Avesta).
After that it will be considered according to medieval parsi (pahlavi)
scriptures. It is natural to consider this tradition - old and new ¬
separately according to old, middle and new scriptures of ancient Iranian's. That is due to the influence of social, economical, cultural and historical changes on the ideas of each nation that cause to produce
new and different ideas and transfrom its appearance. So In this essay at first it will be den<_ted to the last day of the world according to the old and new Mazdian literature and then to the burial customs.