Frozen, I'm a big fan, and the source of Elsa's powers is slightly unknown.A clear origin story is not provided in the original 'Frozen'. But in 'Frozen 2', the plot takes a closer look at where Elsa's powers come from. In the movie, Ahtohallan makes it known that her skills were given by the elemental spirits as a gift to protect themselves.
It is also through her mother's deeds that she would not be hungry and has a sister Elsa who is as kind-hearted as herself. The mother in the movie is from Northuldra while her husband came from Arendelle. The entire scene as described early on can really tug at your heart strings. It's put beautifully too with mountain dew that is pure liquid light flowing into liquid green grass-a miracle, an exception to nature's general laws and yet perfectly logical in itself!
So truly this is one instance where the two forces are harmoniously united, that gives Disney's slide on traditional narrative an exciting twist