We always tend to associate events with emotions if the event or emotion is powerful enough. This holds true for Fluttershy when Mother's Day rolls around.

My first try at writing a story without the use of spoken words. (Picture courtesy of Free-Leaf on Deviantart. Link below)

My submission for a contest DarqFox is holding, enjoy. (Edit: The winner of the contest)
http://free-leaf.deviantart.com/