In Him was life, and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not.
John 1:4-5 KJV

He was in the world, and the world was made by Him, and the world knew Him not. He came unto His own, and His own received Him not.
John 1:10-11 KJV

6 Things Known to Be Caused By Darkness
1. (Depression)
2. (Lack of Self- Esteem)
3. (Lack of Enthusiasm)
4. (Lack of Hope)
5. (Loss of Joy)
6. (Unpleasantness)

God offers us deliverance (from the power of darkness).

Who hath delivered us from the power of darkness, and hath translated us into the kingdom of His dear Son.
Colossians 1:13 KJV

God offers us light (that we can walk as children of light).

For ye were sometimes darkness, but now are ye light in the Lord; walk as children of light.
Ephesians 5:8 KJV

God offers us help (we cannot get on our own).

(Power to become sons of God)

But as many as received Him, to them gave He power to become the sons of God, even to them that believe on His name: which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
John 1:12-13 KJV