We can do things, because we've always done them. We can keep the place painted and the doors open, and forget why it is that we're here. In our family, we sing a lot in the car while we're on vacation. It's pretty dumb. It just goes over and over, repeating the same thing.
Church can be a lot like that.
We can have fun, but we don't always think about what it is we're doing. We don't think about the whole picture. A lot of our church activities have that same ring of familiarity about them. We sing hymns, because we always sing hymns. We take up a collection, because we always take up a collection.