Children of Light
Darkness only exists where light is not. E.g. night time is simply a lack of daylight. The dark side of the moon is simply the side that isn't exposed to the sun. The darkness of sin is simply a lack of God. I believe God wants us to take a good look at our lives and to deal with those areas that have created a shadow in our walk. Deal with them because he is going to pour his Spirit out on us and light and darkness cannot coexist.