A Tale of Stars and Darkness
Potentials are people who whilst often living in the world of Normals have the capacity to move beyond that world and into the realm of magic.
Potentials as a people have no one defining trait beyond an open mind and the capacity to accept the world beyond the veil.
A Potential can manifest in multiple ways, and there is no one set route for their magics, powers or abilities to take or form for them to assume, IF indeed they do attain any magic or powers at all.
Potentials need not come into magic and can at times simply be base humans who have the capacity to move into the world of magic on equal footing through skill alone, elevating themselves to preternatural levels.