Thinking of ourselves first and foremost and ruminating on our past failures brings us into dark places, not the least of which is depression. It is as if a man walks from the sunlight into a dense fog.
Jesus says, “I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life.” That is the antidote to dark places. When I was in major, major depression in 2007, the blackest of black holes, the light of Jesus was very, very dim, but it was still there. I needed a Christian psychotherapist to help me dwell on the light instead of the darkness. It was a slow process, but today the light of Jesus is very, very bright in my life.