All ponies dream. Few remember their dreams. None remember them as well as Luna does. All ponies make mistakes. Most remember them. None feel their weight as much as Luna. Most ponies have a rather straightforward relationship with themselves. Luna isn't most ponies. And she wonders what is best for her.
An entry in the (Un)Happy New Yuri contest under the Doomed and Toxic Yuri categories. Pet the Koi.