User blog comment:Axlorg89/Fairy Tail Filler Arc Incoming/@comment-121.54.54.45-20140922133043/@comment-7418318-20140923094732

That's exactly what I meant. For starters we could learn if they are artificial beings, natural occurances that came to be out in the stars and were later bound to their keys or if they used to be normal (earthbound) creatures who were turned into spirits.