He hath shewed thee, O man, what is good; and what doth the LORD require of thee, but to do justly, and to love mercy, and to walk humbly with thy God? Micah 6:8
Reflect- from a Latin word meaning to bend back.
Basically - we are to mirror God. Reflect His image to a darkened world. Any light we have is but a reflection of God's Light. There is no other.
Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.
Live that others may see Him.