The Transfiguration signals the purpose of religion. The first thing we notice is that Jesus' appearance becomes more beautiful. Second, in his transfigured state, Jesus transcends space and time. Contemporary culture attempts to reduce all religion to ethics, but in Jesus' transfiguration we see that the final purpose of our religious devotion is not that we become just nice people, but rather we become transfigured as sons and daughters of God.
August 2, 2017