Sorry for such a late reply, folks.
To add on to this, there's always the option of going the route of Kingdom Hearts' "Hikari" --> "Simple and Clean," where you completely rewrite the song (assuming the Japanese translations I have seen are correct, of course).
It'd be a lot better to avoid that, I think, as it completely kills the beauty of the song to remove its real meaning, even if the new lyrics sound good. I'll take a look at the translation Senshi provided more in depth later; maybe I can rework the lyrics myself somehow. I dunno, though. While writing is definitely my strong suit... lyric-writing... maybe not so much. If I come up with anything decent, I'll post it, but feel free to throw out any suggestions, of course.
Thanks for the replies, folks.
- Jen