There was a myth that transcends the endless worlds in the Multiverse.
In the distant past, a time much further than the history of civilization, there was no difference between the skies and the earth. Neither was there death nor life, light nor darkness—cold and warmth intertwined, Order and Chaos fused. Indeed, there was not even a clear boundary between existence and nothingness.
Thus, fire was born from nothingness, its light illuminating the Void and separating all things and concepts so that, for the first time, life and death, darkness and light were sundered. The world had its first life that bathed in dazzling fiery light, and naturally had its first deceased too that sunk into the waters of a dark river.