You can read all the magical traditions about this rock here: The Alfaborg Story.
Every stone takes on great significance as the sky vanishes.
And that’s the point. The fjords south of here have been abandoned. The weather is just too terrible. You are alone with rock. There is no sky, only earth that has become it, and maybe a homestead you can scratch together out of mud.
They are shelter. Whether they are rising from the earth or sinking into it, is not the point, because both are true at once.
On Álfaborg, one sees in at the same time one sees out. It is you who becomes the person of the stone, as you gain its vision, and see with more-than-human eyes.
Don’t even try to come home.