Territory
A territory is an expanse of land, city, or other important area or asset which is controlled by a particular person or group of people working together called a "Faction". Once a faction has gained control of a territory, they gain certain benefits over all the creatures, resources, and even magic and activities within the territory.
A territory has 10 points of control. Once a faction has acquired all 10 points, they seize control over the territory and can make decrees.
DECREES
A faction can make a number of decrees equal to its level and apply any number of them to any of their territories. A decree determines how the public and authorities behave. If the territory has magical properties, control of those properties also changes how you can interact in the territory.
For example, deities typically control their territories in the Spirit World by literally adjusting the planar traits and effects as thy see fit.