From Tom Wright's meditation on Jesus' teaching in the Sermon on the Mount:
'Prayer is one of life's great mysteries. Most people pray at least sometimes; some people, in many very different religious traditions, pray a great deal. At its lowest, prayer is shouting into a void on the off-chance there may be someone out there listening. At its highest, prayer merges into love, as the presence of God becomes so real that we pass beyond words and into a sense of his reality, generosity, delight and grace. For most Christians, most of the time, it takes place somewhere in between those two extremes. To be frank, for many people it is not just a mystery but a puzzle. They know they ought to do it but they aren't quite sure how'.