According to the
creation myth as described in the
Bundahishn,
Ohrmuzd's sixth creation is the primeval beast
Gayomart, who was neither male nor female.
Ahriman, the Spirit of Evil that dwelt in the Absolute Darkness, sought to destroy all that Ohrmuzd had created, and sent the demoness
Jeh to kill Gayomard. In this she was successful, but
Mah, the moon, captured his seed before the animal died, from which all animal life then grew. From Gayomard's corpse grew a tree, the seeds of which were the origin of all plant life, and from the branches of which grew Mashya and Mashyana. They promised to aid Ohrmuzd in his battle with Ahriman, and gave birth to fifteen sets of twins which scattered around the Earth and became the races of mankind. ==Theories==