@futurebird The people of the Nordic Bronze Age weren't literate, so all we know of their beliefs is what we can piece together from petroglyphs, carvings and other art.

But we do know that they worshipped the sun. And the sun's trip around the world was a pretty wild ride. First it was pulled from the waters by a giant fish, then a giant waterfowl helped lift it into the sky. From there, it was pulled across the sky by a great horse, until it was placed on a ship and sailed to the horizon. At sunset, a giant snake would come and pick up the ship, and would then pull the ship (with sun on board) through the underworld until the fish could take over and begin the cycle again.

The ship was crewed, and the current consensus is that the crew was most likely the souls of the dead ancestors! But we can't know for sure; they had no written language, and while they had some contact with Greeks, nothing was ever written down about them.