Barbara,
That's not part of the original lyrics, you'll be happy to know. The original poem had music put to it, then words added, then some wacka-wacka soundtrack by Sinead... to each their own.
I'm working on this beautiful song right now with my new singing partner, whose voice I can't *believe* (Kate Brubeck-- watch for that name...) and we're working hard to put both words, harmonies and rhythms back nearer to the original haunting. There's no religion or moralizing in the original poem, just grief for the lost love.
Amazing piece.
pj