Not only is Jesus the light, but He is also the one who created the whole universe. Although God was physically present on earth in the person of Jesus, this verse relates a sad situation: He was not recognized by the people of the world. It is not only that people reject the knowledge that comes from the light, but they also run from the One who brought it to them in the first place.
All that He did and all that He said was witnessed by them. They witnessed many of His miracles, and they followed Him wherever He went. His followers were astonished by the gracious things He said and the incomparable things He did. Yet most of them rejected the Truth and crucified the Lord of Life.
Those who are unbelievers should come to know Jesus as their Savior, trusting in His sacrificial death as their one and only substitute for sin. Those who believe in Him should know Him as the greatest Prophet of all time, the heavenly Priest, who is the only Mediator between God and man, and the glorious King of all kings. As disciples of the Lord, it is important that we do not merely follow Him from afar but instead develop a desire to know Him as our everlasting Life of Love and as the everlasting light of the universe.

Dear Heavenly Father, I am deeply saddened by the fact that Jesus suffered rejection from those for whom he loved and sacrificed so much. As a disciple of the Lord, I desire to know the Lord Jesus more and more. Please open my eyes so I can see You. Encourage me to know Him better. Let Your voice be heard in my ears and may I open my heart to love You more and more each day. 
In Jesus's name I pray. Amen.