Fimbul-rúnir are our powerful skill in action in Miðgarður, when this skill comes from (–and is powered by–) the perfection of Ásgarður, the sphere of Laws of Nature — when it is powered by the perfection and knowledge. Perfection and knowledge is what ginnungagap is.
We contact our consciousness by nýsa niður (transcend thought and space-time). In time, we become perfectly pure and all-powerful. – It is said that peace prevailed where æsir went over lands, so they knew how to nýsa niður and wage peace in consciousness, or so we claim.