This apart of the Sermon on the Mount reminds us of who we should be as followers of Jesus. We should be people that make the lives of those around us better and points them to God. We should not bring more darkness into a dark world, but rather we should be a shining light for God. We should be living life in such a way that people see the difference in how we live and want to be a part of it. How can we make sure that we are being a light? How can we be a light even in dark times?