Discord was once a pony, tracked down in a moment of insecurity by a serpent offering an apple. The consequences ended up being beyond measure.

Alternative take on Discord's origin story where Celestia is ruler of Equestria before he becomes a draconequus.
Contest Entry for the Thousand Word Contest!
Contains heavy symbolism with themes of spirituality, self-deprecation, manifestation, an intense scene of a stallion yelling at a filly, intrusive thoughts including mentions of rape and death, and an ominous ending.