Throughout the multiverse there is a simple balance, a single scale that completes the circle. Good and evil, light and dark, law and chaos, yin and yang, these opposites exit within each other, over and over. It is the way of things.
Seeing as these two are opposites, there tends to be a hatred between them, a desire to eradicate the other. But wisdom holds that none shall ever win, can ever win. It would usurp the balance. It would undo all things, it would reverse creation.
Odin paid his eye to learn this, and with this wisdom came a heavy burden, the weight of the multiverse it seemed. For he learned of the coming, the coming of the chaos that lacks law, the evil without goodness, the undoer Ragnarok.
How was he to carry such a burden, he was merely a god. True he was king among gods, but the thing that came was beyond that of gods, for it was the opposite of creation.
But Odin was indeed wise, and he called upon his subjects, his allies and even his enemies. Together they scoured the multiverse, through endless voids, until finally entering the chamber of the nexus, the center of the multiverse.
And it was here infinite gods from infinite worlds discovered the key to stopping Ragnarok. The balance must hold, good and evil must stand as they truly are, they must stand as one against his vile armies.
And so came Valhalla, the warriors hall. It is here we must learn to stand as one, to fight as one. For we fight not for justice, not for conquest, not for love, and not for domination. Here we fight for our very Existence.