When Celestia has a vision of her protegee's future, she has to give her a home in Ponyville where she can fulfill her destiny. Luckily, there is a spot in the very middle of Ponyville, only inhabited by a lone, great oak. But, trees aren't as mindless as you'd think. Transformed into a house and enchanted, the oak muses on it's life as a protector of it's inhabitants.