In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things were made through him, and without him was not any thing made that was made. In him was life, and the life was the light of men. The light shines in the darkness, and the darkness has not overcome it.  –  (John 1:1-5 ESV)

When light enters into a room it drives out the darkness. Jesus is pure light and in him true life is found and apart from Jesus there is only darkness. All other lights are merely counterfeits and actually lead to spiritual deception. Jesus is the very essence of purity and power that every true seeker of God desires.

The light of Jesus illumines our path. When we look at the Jesus presented in the Gospels we get an accurate picture of the nature of our Father in heaven – we see truth. This world is filled with lesser lights – counterfeits – angels of light. But be warned – they ultimately lead to spiritual darkness.

… for even Satan disguises himself as an angel of light. So it is no surprise if his servants, also,   disguise themselves as  servants of righteousness. Their end will correspond to their deeds. – (2 Corinthians 11:14-15 ESV)

This is the message we have heard from him and proclaim to you, that God is light, and in him is no darkness at all. If we say we have fellowship with him while we walk in darkness, we lie and do not practice the truth. But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin. – (1 John 1:5-7 ESV)

Jesus (the light) leads our souls out of darkness. As we walk in the light, we reflect the true light and God cleanses us from sin. As we are energized by the Light  and walk in the light, people will be drawn to Jesus. The person whose soul  is surrendered to God has a soul full of light and will effect the people they come into contact with. For spiritual transformation that will effect you and those you interact with – look into, meditate upon, and receive the eternal word of God.