I think you should approach the song in your own way rather than looking for a definitive version. You clearly love the song, and so if you play with singing it for a while then you will evolve your own interpretation.

I'm working on it at the moment as well - hence I was interested in this thread. I am messing around slightly with the words, with the phrasing/timing and with the pitches - its a song you can really fly with! I'm interpreting it as a woman singing about a man who wants to "anticipate the vows" - is warned off of him by other people & who loses him, then sees him many years later when he is dead & his ghost again tries to persuade her to sleep with him.

Its one of several slightly ambiguous songs that you can really get into & feel a story of. That is why I think a definitive version is a bit of a red herring. I'm waiting for a mellow night to sing it, because my version goes up really high & I need to be relaxed or I'll squeak & spoil it!

I know mine won't be the best interpretation in the world - but it will be my own, - and I'll still love listening to all the other versions.

Best of luck with interpreting it your way Tunesmith.