Impenetrable walls of unflappable calm and royal serenity did an excellent job of keeping people out of her inner thoughts, as they had done for hundreds of years.

"I could find you a book easily, but it would be incomplete. Before my student and her friends used the Elements of Harmony the first time, they had been left behind in an abandoned castle for a thousand years, and much lore on them forgotten. However, you chose a good time to come looking for a history... because I am here." Celestia smiled, folding her wings in a bit more. "What would you like to know?"