I think my love for rhythm in language comes from repeating the same words, the same sounds, over and over again day after day for so many years.
The main thing a poem ought to be is musical. It should be rhythmic. You should hear it as a musical piece in your head as you're writing it.
Rhythm must have meaning.
All music is nothing more than a succession of impulses that converge towards a definite point of repose.
If you listen to a language for 15 minutes, you know the rhythm and song.
Music is the crystallization of sound.
We learn a language through its song, and even if you don't have music you have the song of people you love's voice, and you'll notice that song in their voice.