Lyric discussion by richard104 

Cover art for It Burns Within lyrics by Heaven Shall Burn

I've always been of the persuasion that It Burns Within is a statement in opposition of all flavors of Collectivism (ex: Socialism, Communism, Fascism etc.) and the way they stifle and numb individuality. It also serves as a reminder to those who are not benighted of this reality to fight for those, who may be unwilling to do so for themselves. That is to say; to help those who've become complacent or embraced group-think ideologies (Bernie Sanders and/or Donald Trump supporters are both great modern (if you're reading this in 2016) examples) see the light. That they are individuals, not slave to some co-dependent hive.