Twilight Sparkle catches an unknown illness after a trip to the Zebra homeland with Zecora, and ends up hospitalized while she awaits a cure.
With the doctors lacking a diagnosis, and her future looking grim, she relies on those she loves for support.
Note: This is not meant to insult/express my views on religion or Atheism. It was just something I wanted to write after re-watching Celestia's ballad sometime in May.
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Edit: Revised 8/24/15. I did it late at night, and might revise it further after I wake up.