When you were born again. Your spirit was regenerated. Your spirit was made holy and set apart for God's purposes. Now you carry God's glory, His radiance, his presence, his anointing. People look at you and see the light of Jesus in you.
You were put in your house to give light to everyone in the house. You are the light of God to your family, your friends. You. You were put in your neighborhood, your place of work or school to let your light shine before others that they may see your good deeds and glorify Father God in heaven.
God will make you a light to everyone around you. It's his plan for your life. No matter if you're a new Christian, no matter how broken or flawed you are, you are the light of your world. Go burn brightly for Jesus. If he could use me, as broken as I was back then, my friend, he can use you.
"Arise, shine. For your light has come and the glory of the Lord rises upon you. See, darkness covers the earth and thick darkness over the people. But the Lord rises upon you and his glory appears over you. Nations will come to your light and kings to the brightness of your dawn."
Isaiah, chapter 60, verses 1 to 3.