Editing Planescape (section)

===Rules===
There are three principles (or [[heuristics]]) governing the world of Planescape: the Rule-of-Three, the Unity of Rings, and the Center of the Multiverse.<ref>{{cite web | url = http://www.gamebanshee.com/planescapetorment/glossary.php | title= ''Planescape: Torment'' glossary}}</ref>

====Rule-of-Three====
The first principle, the Rule-of-Three, says simply that things tend to happen in threes.<ref>{{Cite web | url=http://official.planescape-torment.org/glossary.html | title = Planescape:Torment – The Glossary | access-date = October 2, 2007}}</ref> The principles which govern the planes are themselves subject to this rule.

====Unity of Rings====
The second principle is the Unity of Rings, and notes that many things on the planes are circular, coming back around to where they started.

====Center of All====
The third principle (fitting neatly into the Rule-of-Three above) is the Center of All, and states that there is a center of everything—or, rather, wherever a person happens to be ''is'' the center of the multiverse... From their own perspective, at least. As most planes are functionally infinite, disproving anyone's centricity would be impossible. In ''Planescape'', this is meant philosophically just as much as it is meant in terms of multiversal geography.<ref>Planescape Campaign Setting pg.3</ref>

The fact that anywhere could be the center of the multiverse in this view also implies that nowhere can be said to be the only absolute true center. This sparks a lot of arguments and violence since some people believe the City of Doors to be the center due to its uncommon number of portals to other planes and position in the Outlands and some factions also claim different centers, each with their own significance.