Well, don't think I didn't try before posting this thread, because I already tried putting the body and the heart in the arms of the statue of the left room that is come by by stepping through the correct letters inside the Shadow Temple. Nothing happens if I place those items there, however. I'd be grateful if someone were to point out, I don't know, maybe a global variable edit or anything to revive Aerie? Thanks. Any un-finished quest is strangely nerve-racking to me.
Edit: The topic itself might be a spoiler, but I failed to change it. A helping hand would be nice.