I've only been able to give it a few listens thus far, but I think my favorite song at this point is "Carry the Fire."
Here is a video of Peterson explaining the story behind the song.
And here is a rough video shot on the tour bus of Peterson playing and singing an acoustic version of the song.
Andrew Peterson, "Carry the Fire" from The Rabbit Room on Vimeo.
Carry the Fire
I will hold your hand, love
As long as I can, love
Though the powers rise against us
Though your fears assail you
And your body may fail you
There’s a fire that burns within us
And we dream in the night
Of a city descending
With the sun in the center
And a peace unending
I will, I will carry the fire
I will, I will carry the fire
Carry the fire for you
And we kneel in the water
The sons and the daughters
And we hold our hearts before us
And we look to the distance
And raise our resistance
In the face of the forces
Gathered against us
And we dream in the night
Of a King and a kingdom
Where joy writes the songs
And the innocent sing them
I will carry the fire for you
Oh, sing on, sing on
(Light up the darkness)
When your hope is gone, sing on
And we dream in the night
Of a feast and a wedding
And the Groom in his glory
When the bride is made ready
I will carry the fire for you