"Struggle" is meant to get at the heart of what is common to all of us without specifics. Paul wrote in Romans that he wanted to pursue the right things yet at times found himself actually doing the wrong things—doing what he did not want to do. Even on the smallest scale there are times in which we all struggle with God, ourselves, and a sense of failure. But then there is hope through the struggle, just as Paul found hope. God, the Lord of Light, still remains with us through those difficult times. He sees where we struggle and where we fail, but His presence is constant and He is the only one that can save us from the guilt and shame we feel.