A stallion falls to his knees in a cathedral to Celestia and prays for forgiveness for his crimes.

"Atonement" by Naryyn

Original Story: https://www.fimfiction.net/story/377705/atonement

Thumbnail: https://www.derpibooru.org/1485815?q=princess+celestia

Music: https://www.youtube.com/user/myuuji