"Arise, shine; for your light has come, and the glory of the Lord has risen upon you,” Isaiah wrote thousands of years ago, and so the prophet foretold the dawn of God's light on each one of us as we come to a fuller knowledge His Son.
By the rising of Jesus Christ upon us, we are able to rise from weakness and to shine with the reflected glory of God. When we do right in the Name of Christ, we shine with His light, and we know that the darkness has no claim on us at all. We know that His light will take away even the shadows in our lives, so that we can call God not only our Creator, but also our Father. More even than this – because we belong to the Light of the World – every single day of our lives is a new opportunity to grow in His light, so that we can become more and more like Him.
Our lives are given to reflect God's glory, and this is the noblest and most blessed purpose of all. We are, in a mystical way, to be an “epiphany” of Christ, so that the whole world can see His glory in our lives.