I'm Trying to Get Little Lines Out of a Song

Lyrics usually remain the lyrics for a long time, cause i cannot get boxed into certain things. And then maybe i'll go through a period where my goal on the songs is to just improvise new ways of singing things. I sometimes have luck with feeling like at the end of that process i've kind of said all i want to say, or something. But that's usually where every album ends up, like, but i get little lines out of it.