In Persian mythology, Geush Urvan was the power of Mother Earth given form as a bull. For the 3000 years it lived on Earth, all the strength of the universe was located there. Then Mithras killed it, and its energy was transferred to the sky, where universal strength ever afterwards belonged to the gods. The decaying corpse, however, remained on Earth, and the last scraps of Geush Urvan's power were reformed into every species of animal and plant. Research Geush Urvan
 
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