The Heavenspan Sea lies in the very middle of the Heavenspan Realm. Four rivers stretch out from it, which all break up into smaller branches. In that sense, they are almost like the branches of a tree. The areas near the water have spiritual energy, but the lands themselves are too vast, far larger than can be reached by all of the rivers. That is why there is so much land out there with no spiritual energy, the places which we call the Wildlands.