Magica Lore: Fragments

For millenia the world has been influenced by a strange, mystical force. Capable of changing reality and lives of individuals as well as collectives. Nations have rise and fallen under their influence. 

This force is known only as "fragments" 

Only recently have mystics as well as scientists named and created a fitting theory surrounding these illustrious pieces. 
The current model is that of a massive radiating molecule, which in ancient times was bound to a powerful soul. This entity has, for the lack of a better word, been named the god-entity. At the dawn of times something caused it to crumble and radiate, shattering into fragments of different sizes and strengths. 

These fragments naturally seek and cling to souls on the world, binding to them. These bound are, due to their native fragment, able to influence reality, in common terms, use magic. 

Magic in its essence has one task, to manipulate the normal world. How it does that is dependant on the soul, it subconsciously shapes itself to the wishes and feelings of the soul that it is latched onto. 
So anything from sheer fire manipulation, to heightened senses, to creation of weaponry out of sheer nothingness and other more freaky things are possible, I think the strongest I made was the manipulation of space and the manipulation of space inbetween space. 

How MUCH can be done is decided by the size and strength of the fragment, the bigger it is the stronger. However, if a fragment is too strong, it can overpower the wielder. As the fragment works off of the souls emotions and desires, it also amplifies them if the soul is not strong enough to control it, leading into them being consumed by their desires.
These are called fallen, or demons. 

Magic has two other properties, and that is their combination, and the heritage. Combination is basically the sheer fact that all fragments are able to fit into eachother and grow stronger. If they however are seperated from their soul and too long without one, the fragments split up again. And the second, heritage is the fact that if a soul manages to hold onto a fragment for a very long time, speaking about a human lifespan, or more, the fragment keeps certain characteristics of the former owner.
Certain fragments have only been used for good or bad intentions, may favor certain properties, etc. Both good and bad, only time is dependant. This means that fragments that are passed down hereditary usually are very specialised, and only a very selective few can wield them
Fragments are inherently neutral, however certain fragments over the course of time have been wielded by people of not this alignment.
Good and bad, certain fragments are more inclined to seek out these, their properties more easilly changing further down these paths.