Princess Celestia is one of the two main rulers of Equestria. She is supposed to always keep a level head, no matter the situation or circumstances. She just has to! And Celestia has always been very good at doing so until the incident occurred.
Philomena, Celestia's phoenix is injured and suffering. Celestia starts to ponder how her little bird even feels about the life she is living and must be forced to make a difficult and heart-shattering choice to get herself back on track and to rid the pain and misery of her beloved pet.