"But always remember, Twilight, it was the strength of the pony's soul and love for peace and harmony that drove change. Throughout history, pony folk wanted to live in peace, and it was this desire that led to the formation of Equestria. It led to the fall of Discord, and it created the society that you live in today. Celestia controlled a magic that ponies gave to her. It is their dreams and desires that fill the air, that shape the world. My sister... or at least I believe it is her, just seems to help it along."