Rogue World Asylum is a social commentary on how our world is devolving. "die mauer" is german for the wall... i see a lot of references to the Berlin Wall. i think that its an extended metaphor for how we have been blinded by something (government? media? both?), and how this social and mental berlin wall is constraining us, but if we try hard enough, we can knock down the wall ("our future in debris"... torn down walls are considered debris). the "She" in question is the world, i think, how its been blinded, as i said earlier, and how currently we are so convoluted that we "breathe death", in how we are totally oblivious, and how we are destroying the world and oruselves.
just my .02 on that song
Edit: Not going to go as in-depth on this one, but I Know The Reaper seems to NOT be about the act of fearing death, but rather about fearing the idea of being forgotten, or fear of the afterlife.