User blog comment:Purehito/What is your favourite magic and what magic would you like to see in the next FT arc?/@comment-86.70.179.113-20130627075046/@comment-7418318-20130627080948

Living magic and celestial magic.... hm....

I wonder if maybe the celestial spirits were originally created by mortal (or maybe immortal, like Zeref) mages via Living Magic.

I hope Mashima will explain in more detail what exactly celestial spirits are and how they came to be, or if the evolved naturally, how they were bound to their keys.