The light of life
By the word I have come to understand that the man who does not have Jesus in his heart is someone who walks through life in darkness, everything seems good because he does not know how to discern what is wrong or good.
Jesus knew very well that a person in this world without the guidance of God would be subjected to eternal darkness and would be dead even though physically he had life. since the book of Ephesians 2 tells us:
"And he gave you life, when you were dead in your trespasses and sins"
The man without God is spiritually dead and subject to all kinds of crime and sin.
but when we raise our eyes and recognize that we need Jesus then we begin to look differently with the truth because we have been rescued from darkness to light.
This world, although it has a lot of attraction to offer, has nothing to do with the light of life that this verse speaks of, that is, with Jesus. The world offers many things but all of them are temporary. However, what Jesus offers us is eternal.
Today is a good day to say: Jesus, thank you for one more day of life for always being by my side and being the light of my life.
Thank you for one day your grace reached me and today I can see life in a different way.
Where Jesus is there is no darkness because He is the true light and darkness recedes before the light.

Source
Jehovah transmits spiritual light mainly through his inspired Word, the Bible to be our manual of life in order to flee from darkness and walk in the divine light, we must listen to everything Jesus says and follow his example and teachings with attention , which we know thanks to the Bible.
Jesus is the spiritual light. In fact, he presented himself as "the light of the world" and said: "He who follows me will by no means walk in darkness, but will possess the light of life" (John 8:12). These words help us to understand the fundamental place that Jesus occupies in the transmission of the truth of God to humanity. </center<

@xioran, the light of our life is certainly our Jesus who guides us on the path of righteousness, without Him our life would be totally gray and useless.
Thanks for sharing.
Without Jesus Christ, simply every human being is in darkness for which he needs to be rescued and brought to the admirable light that our Lord has.