Lyric discussion by Renzoku 

Being a dark angel does not necessarily mean you've been cast out for some wrongdoing or anything like that. In fact, you may walk freely among others, just expect that all the attention they'll pay you is adverse, seeing as by your position you attain a reputation for being a troublemaker and circumventing the 'rules'.

In my interpretation, for an angel [although I don't believe in angels - this is all based on my roleplay universe] to become a dark angel, -he- is the one that changes; it is not a decision made by anyone else. The very essence of the angel's soul becomes so consumed by the smog of thought - that piece of imperfect being - ["Doubting angels fall to walk among the living."] that they lose some of their foothold in heaven and are often removed to the corporeal world [NOT, however, as one of the Fallen], not necessarily as a measure of exile, but for their own protection would their ex-brethren see them as threatening.

It's like... Les Miserables. Because when an angel loses heaven's light, he can never regain it, or perhaps even when he does, that which made him dark in the first place remains. ["They fall again." "I'd only come here seeking peace. I'd only come here seeking me. It seems I came to leave.]

An error occured.