Pasion is where the king of the Gabranth lives. The Kingdom of the Gabranth was made around the Tree of Origin, Aragon as its the center and is surrounded by the forest. Or rather, you could say that it is the forest, since everything is made out of trees.
The king exists in the inner part of the tree stares at the King Tree.
Although large, Passion does not have much war potential. Marching to their enemies is basically suicide.