The light that flows through you is the same light that flows through every other.  On the outside is sheathing.  If you to were remove the sheathing, you would see one fibrous web of shimmering strands of light, connecting all of you.  Call this the Christ Light if you will, with no religious connotation, save the meaning of a christ as one who knows they are one with the Source.  This web of light arises from that Source, and you arise with it, dissolving back into it in every blink of the here-now.  Shine on, knowing that the brighter you shine, the brighter the entire web shines.  You do, indeed, make a difference.  You are so very loved.