It is the role of a Goddess to be a bastion of constancy. To see the world around her move forward, but to hide her own emotions always. So is the shell a Goddess must build up over the many ages of her life.

What happens when that shell is broken? What does it take to move the heart of someone who has lived a thousand lifetimes? What happens when an immortal begins to regret their own life? For once in her long life, Princess Celestia isn't so sure any more.