Lyric discussion by Teocosmo 

Cover art for Buried Alive lyrics by Avenged Sevenfold

to me it's pretty obviously about having some kind of purpose/dream in your life, and like putting into it all of your time and hope, so that you may, occasionally, even have to screw relationships with some people in order to fullfill it("hold on to faith as i dig another grave)

@digeratus i think that by "voices" he meant the voices in our head, screaming from the pain that you fell inside