Councilor Phaedra on Prime

The world is made of quintessence or vis as it is called in older texts. Every person, place, or thing contains at least a miniscule dram of vis. While the pattern of reality fights the will worker's desire to bend it to her needs, vis empowers her. It is in a way a great cosmic joke. 

Reality both gives us the tools we need to empower ourselves in vis and the means to destroy ourselves in paradox. Paradox occurs when a will worker pulls the threads of reality too far out of sync, in which case they snap back into place so hard her hands are scarred (sometimes literally, more often metaphorically). The sphere of prime allows the will worker to see, move, and manipulate the raw magical energy of reality. All awakened should learn at minimum apprentice themselves to this field of study.