Ritual

Rituals use dreams to fuel an alteration to the rules of reality. Each individual soul carries within it an infinite dream, which when mastered, can be used to impose its reality over that of the Dream Cradle.

Function
Dreamers manifest new realities through the use of predefined rules. By self imposing limitations and restrictions, their influence is able to more effectively break through the external reality with their own dream. This can be used a step further, giving up more than you have to give, and extolling a price to empower magics to some proportionate degree.