I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life. (John 8:12)
Light was first of God's creations, showing that from the very beginning, He never meant for us to live in darkness.
So when we succumbed into the dark pit of sin, God again came into action. But this time, He did not just speak it. He sent it. He sent His one and only Son to be the light of the world. To be the light of our worlds.
So if you feel that all there is in your life is darkness--sins, failures, disappointments, hurts, or anger that may be blinding you--turn to Jesus, who said: "I am the light of the world. If you follow me, you won't have to walk in darkness, because you will have the light that leads to life." (John 8:12)