i never interpreted this song as having anything to do with religion? I perceived heavenly creatures to be metaphorical...
And I've never been so sure
That after all these years, all that I've learned
Is that heavenly creatures never come
They never come
to me, it sounds like, after many failed relationships, she's realized that the perfect (perhaps, "angelic") person doesn't exist. you kind of pray that this amazing person will come and save you from the mundanity of life. but it never happens. and if you do meet someone like that, the longer you get to know them the more mortal they appear, eventually hurting you. she keeps hoping, but has now come to terms with reality.
...am i crazy?