I think that this song is pointig out that many Christians live with their heads in the clouds, focusing only on the "heaven [they have] concocted in their heads."
Rather than helping "All the broken people left unfed," or "those who don't seem to understand," these Christians only want the rewards of their faith.
This song states that in order to make heaven truly exist "beneath our feet," we must help others, and not be consumed by our desire for the perfect world.
I think that this song is pointig out that many Christians live with their heads in the clouds, focusing only on the "heaven [they have] concocted in their heads." Rather than helping "All the broken people left unfed," or "those who don't seem to understand," these Christians only want the rewards of their faith. This song states that in order to make heaven truly exist "beneath our feet," we must help others, and not be consumed by our desire for the perfect world.