Magic

The Weave and its threads are how all things are bound to one another and how magic can be utilized throughout the world. Each person and thing is made up of bound threads of energy some call Leylines or Aetheric lines. These lines can be manipulated by a magic user in order to invoke their will upon the world. This is typically done when a user focuses their power in order to reach out and affect the threads around them. This energy all people possess is what most refer to as a Soul, the energy that makes them who they are and gives them their Aura and once spent or destroyed means the person or entity no longer exists. The threads that made up their body would still exist but the energy stored within that specific gathering of threads would be gone. But I digress. 

There are few currently known ways one can manipulate the threads of the world and all of them require the user to manipulate their own soul energy or Quintessence in order to be able to touch upon the energy of the threads of magic that exist around us.