Rhythm is everywhere! Rhythm is life. It’s in every birdsong, in every machine beep, in every breath any living thing takes. Some songs arrive fully formed with their rhythm loud and clear. When that happens don’t mess with it! Others you may need to work at to find what makes their heart beat or to fulfil some weird mental desire (like a 9/12 + 15/4) that you have to make them groove. Main thing is to stay true to your own groove. Whatever that may be.