Prayer. For many Christians, the word evokes feelings of guilt. Who is content with their prayer life? It can be easy to blame our modern age. Or our busy lives. But I think our lack of prayer is often due to a lack of understanding. What really is prayer and what does it do? We need to think about prayer. We need a theology of prayer. Of course, there are lots of books about prayer. However, most approach the topic from a systematic or devotional viewpoint. Gary Millar, in Calling on the Name of the Lord, takes a different route that fills a niche.