Lyric discussion by estocopath 

Cover art for The Mask lyrics by Saviour Machine

I think eric had some issues with drug use in the past (ahem, before he was saved) so you could draw some conclusions based on that. I think alot of this song revolves around the lines "watch them crawl on me- claiming redemption- they're coming to your town." So in a more general sense, he's talking about the empty attempts of man to find salvation in anything but Christ- be it drugs, sex, knowledge, religious chores, good deeds, etc- and then watching that attempt fail "when the mask came off"

Of course, after all is said and done, Eric is really the only one who really knows what he was trying to say.