May I come back to what I said before? This is the whole of Christianity. There is nothing else. It is so easy to get muddled about that. It is easy to think that the Church has a lot of different objects—education, building, missions, holding services. Just as it is easy to think the State has a lot of different objects—military, political, economic, and what not. But in a way things are much simpler than that. The State exists simply to promote and to protect the ordinary happiness of human beings in this life. A husband and wife chatting over a fire, a couple of friends having a game of darts in a pub, a man reading a book in his own room or digging in his own garden— that is what the State is there for. And unless they are helping to increase and prolong and protect such moments, all the laws, parliaments, armies, courts, police, economics, etc., are simply a waste of time. In the same way the Church exists for nothing else but to draw men into Christ, to make them little Christs. If they are not doing that, all the cathedrals, clergy, missions, sermons, even the Bible itself, are simply a waste of time. God became Man for no other purpose.
Quotes from Mere Christianity, Part 78
C.S. Lewis, Mere Christianity (1952; Harper Collins: 2001) 199.