Osiris (corn,grain) mummies had a ritual function and they were an important part of the annual Khioak festival which was one of the most important celebrations in ancient Egypt where Osiris resurrection myth was celebrated annually with dramatic performances and processions taking place within the Osirian temples. The celebrations of the Osirian rebirth and resurrection included rituals performed in the presence of several Deities, Gods and Goddesses each having a role to be done in order to resurrect Osiris, such as the Goddess Hekat (Frog) which was responsible for giving life, helping during rebirth and protecting from evil. Grain mummies were made to ensure the mortality in the afterlife, rebirth and regeneration of nature.