Not everything we do has to have a legitimate productive reason. I've observed many churches, and some of the people that fill them, think that they are supposed to spend every waking moment on "soul winning" - i.e., handing out tracks, preaching, inviting to meetings and the like. But sometimes, it is good to simply - be.
We cannot always express what we want or how we feel in words. And we certainly can not explain all truth verbally. Sometimes the greatness of God, and the bursting from within, comes out in music, painting, storytelling etc.
People matter. So listen to what they are saying... and what they are doing... and what is just flowing out of who they are. It's important.