Why do we play games? Because they're fun? Or is it because they give us a sense of structure and a clear goal, a refreshing contrast to our real lives, which are messy, unpredictable, and complicated?
In the same way, we listen to Bach to give a much-needed feeling of structure and clarity to our hectic, messy lives.
But sometimes, he doesn't quite give us what we expect. He breaks the patterns. And it's at those moments when we can catch a glimpse of the angels in the architecture.