I don't usually read fanfiction, but thanks to my recent brony obsession I've started and came across this absolutely beautiful story. It is called My Little Dashie, here is a synopsis:

When your life is as dull a gray as the world that surrounds you, the mundanities can make it all seem meaningless. Sometimes all we need is a little color -- or six -- to reintroduce us to what truly makes life worth living.

I highly recommend it to any fan of the show IT ACTUALLY MADE ME CRY because it was so heart wrenching and bittersweet, but so beautiful: http://robcakeran53.deviantart.com/#/d4b27q4 or for an audio version: http://www.youtube.com/watch?v=tESDlYTkzsI