Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life.
The world, naturally speaking, is in the darkness of sin, ignorance, and aimlessness. The light of the world is Jesus. Apart from Him, there is no deliverance from the blackness of sin, no guidance along the way of life, no knowledge as to the real meaning of life and the issues of eternity. Jesus promised that anyone following Him would not walk in darkness, but have the light of life.