Building my world

You are a well experienced and skilled explorer who has a travelled through some of the most dangerous landscapes and environments know to man, you have faced your fair share of troubles in that time however this time you are in a Scandinavian forest and this time it's different you have a feeling that won't stop bugging you and it draws you further and further into the the tall trees and thick shrubbery. As you draw closer and closer you hear chants of an inaudible dialect. As you pull a bush back you can see a huge circular slab with Nordic runes each one a different colour, their purpose is unknown and as you look around the slab you see torches on fire however this is no ordinary fire like the runes they glow a different colour. Your eyes then begin to wander and You look downward and see the aged mossy stone covered in a thick gray mist that enshrouds everything it falls upon and within it you see people on their knees wearing what seems to be a some form of ceremonial outfits in the fog at the base of the slab and then a light begins to emanate from the slabs location and what seems to be a tear in space begins to form from it and a hand begins to reach through it.