Darkness Into Light

"But I will make the blind walk along the road and lead them along paths.  I will turn darkness into light before them and rocky places into level tracks.  These things I will do, and not leave them undone."  -Isaiah 42:16

Isn't it just like God to not leave things undone?

I had a discussion with someone once who told me that darkness doesn't really exist in and of itself.  His exact words were, "darkness isn't a real thing".  He said that Light is a real thing and that darkness is just the absence of Light.   I thought that was an interesting way to look at it.  In this way, the emphasis isn't on the darkness, but on the Light. 

I think this is profound and what I will ponder today.