It might suggest that while one phase or part of a story has come to a close, there's a lot more to unfold and discover. It creates a sense of anticipation for what's to come.
Sorry, I can't recall the specific lyrics of that song right now. But you could easily find them by doing a quick online search or checking music apps that provide song lyrics.
It could have various meanings depending on the context and the emotions the songwriter wanted to convey. Maybe it's about the finality of a particular relationship or event.
I'm not familiar with the specific lyrics at the moment. But you can try using music apps or Google to look them up. Chances are you'll get multiple results and be able to find the exact version you're looking for.