Ok. One: it's "take the light, undarken everything around me". He's saying to take the light and use it to make everything brighter.
Two: it's clouds.
My brother's a musician with a very good ear. I had him listen to it. He's a Seether fan, same as I am and watching everyone butcher these lyrics was killing us both.
I've corrected these lyrics for future generations. Hopefully this is the last time they will be corrected as I corrected them as good as they can be.
Thank you.