Magic comes from the force ku’, and the most steady supply of this force is the ku’ that the entire land of rita is made of. This, of course, means all magic done from this source is directly damaging to the land itself, so magic is incredibly limited. Mages can spend a lifetime studying magic and never actually perform it.
There are eight theoretical springs, or filters, of magic. Most of these are very personal, which magic naturally is.
These were first outlined in ssak’s lu’nbapada’tujebahi’ (Thoughts on Magic). Mages must study and memorize these, to understand where magic can come from, and to control their own magic so it doesn’t get to powerful, since all of these emotions and things can increase power.
Spells are complex, and often don’t happen when you want them to. It involves controlling ku’ from some source using body motions and spoken words in the language of ku’. Magic is limited by how well trained you are, and by the compromise of power: all magic and all power has a direct and opposite effect. Everything bad has an outcome to it. In other words, everything must even out.