The Original Dimentions

"The Original Dimensions have existed as far back as anyone can reach but yet they did not exist at some point. They go as far as anyone can and yet they have an edge. They are the dimensions in which everyone exists and yet some can not see them. They only thing that came from outside is ether and even it is trapped here."

- A report into the nature of reality and the numerous ingenious methods through which wizards, warlocks and other users of magic investigate it

Dimensions in The World: Gaia
Dimensions are a series of coordinates that can be used to describe the position of everything. The coordinates are a distance from a given reference point.