I think this song is about life. You get born in a thin line you have to live, take the interests others teach you as your own and get taught an opinion.
"confined freedom guides us to security"
I think this line says that if we are controlled we somehow feel more secure. This song is also about war i think, because soldiers are send to war compelled to fight for the upper who hve the might to control them and send them to war.
This is a very political song i think. And by tragedy we realize that nothing we are taught must be right and we start to ask ourselfes moire than if we get taught what we get taught and our whole life runs well.
I think this song is about life. You get born in a thin line you have to live, take the interests others teach you as your own and get taught an opinion. "confined freedom guides us to security"