Summation: Forming and utilizing a ball of energy charged with the intent of illumination
In your hand raise a controllable necessary concentration of energy. Focus this energy into a ball, and will it to admit a subtle light.
Charge it to illuminate the area around you with this light so that you may do any of various things including but not limited to:
find hidden things
see through the veil
cast out shadows
uncover truth/see through lies
function as an occult beacon
etc., etc., etc.