La Villa Strangiato is entirely instrumental, so what does it communicate that a lyric-driven track could not?

Lots of people love YYZ as their instrumental, but La Villa Strangiato is it for me. YYZ is a great showcase for each musicians talent, but Strangiato, a story is definitely being told. So many different emotional elements in this piece. All time fave! And when they play it live, its never the same twice.