Graveyards.

They are where the living pass on into the afterlife. Where the dead rest and find peace that will last them for all of eternity, and their living loved ones come to pay respect to them. But for Twilight, an Alicorn who has laid numerous ponies to rest, and has paid her respects to countless souls in the vastness of her lifespan, the graveyard is a lively place. For her, 'best friends forever' isn't just a saying, and the bonds of a true friendship don't end when life does...