Alex Robinson writes that there are three specific moments that every worship service needs. He calls them the Awe, the Aha, and the Haha:
Awe moments are those moments when we begin to realize who God is and who we are in light of this. These are very experiential moments… Aha moments are those moments when we “get it.” When we finally grasp something in a way we can live it… Haha moments add “personality” to worship services. They add a relational element. Have fun. Be real. Connect with people.
He goes into much more depth in the full post. Check it out here.