Her relationships frayed, and her future causing her anxiety, Applejack heads down to the river with many of the earth ponies in town to see her aunt, an itinerant clergymare of Gaia. Accompanying her is her friend Twilight and a host of regrets.
(Though you don't need to know this to read the story, this is part of the Splinter Songverse, a re-imagining of what might have happened if Rainbow had died in "Where the Sun is Silent" which you can find on EQD. My Love, a Ghost also is about Rarity and Applejack. The real Songverse can be found on my page.)