For some Christians, God the Holy Spirit is something of a mystery, and they are not too sure what to say about him. Others speak with confidence and enthusiasm about him, challenging us to be 'filled with the Spirit', or to live a 'Spirit-filled life'. As a result, the work of the Spirit has sometimes been controversial.Graham Beynon looks at the main New Testament passages in which the Spirit s work is described. With freshness and clarity, he builds a picture of what the Holy Spirit does, and hence what experiencing him in our lives should look like.