Light played an important role at the birth of Jesus. Remember the shepherds “the glory of the Lord shone around them”, or the Magi who were guided by the light of the star
So we appropriately use lights as a symbol of the light of God coming in the person of Jesus. But, also, light is often used metaphorically in Scripture
John’s account says that the true light that gives light to every man was coming into the world. Another verse that can help us is 2 Corinthians 4:6 For God, who said, “Let light shine out of darkness,” made his light shine in our hearts to give us the light of the knowledge of God’s glory displayed in the face of Christ. Light is being explained as ‘knowledge’ (like the light bulb went on), or we also could say: ‘revelation’.
For example, Genesis 1:2 says: “In the beginning let there be light”, or could be translated “In the beginning God said; Let there be a revelation of myself”.
Isaiah prophesied; “the people walking in darkness have seen a great a light”. Or we could say: “The people walking in ignorance of God have received a great revelation of who God is.”
In John 8:12, Jesus proclaimed that he is the light, or, that he himself is the culmination or fulfillment of all revelation concerning God.
So when we see the lights of Christmas, let’s be reminded Christmas is the celebration of the revelation Jesus Christ.
“Amazing Grace, how sweet the sound,
That saved a wretch like me….
I once was lost but now am found,
Was blind, but now, I see.”