The core religion of my Duchy intends to be something of a cult of the Faelism (or whatever it's called) religion. Everything has a spirit. Those spirits have courts, with the broader concepts being at the head of those courts.
The people of the Stormlands believe that to return to the world, they must be returned to the embrace of the spirits. That means leaving the ritually prepared body out to the storms, probably on a mountain. The spirits of the Scavanger will descend to retrieve the soul and bring it back to the courts.