The Sermon on the Mount draws a comprehensive portrait of the right way to live. It aims to show us how to be a human being. We could sum up its fundamental insights by saying that man can be understood only in the light of God, and that his life is made righteous only when he lives it in relation to God. But God is not some distant stranger. He shows us his face in Jesus. In what Jesus does and wills, we come to know the mind and will of God himself.

If being human is essentially about relation to God, it is clear that speaking with, and listening to, God is an essential part of it. This is why the Sermon on the Mount also includes a teaching about prayer. The Lord tells us how we are to pray.

Jesus of Nazareth: From the Baptism in the Jordan to the Transfiguration. by Pope Benedict XVI, 2007 Image books, page 128.