Square Hammer

 It may indeed be about the Masonic induction ritual, but in the chance that it isn't I will add my (likely incorrect) thoughts on it.
 I would caution everyone to first look to the music video for Square Hammer before going too deep into the weeds on their personal theories. It may just be as simple as that: A supposed vampire slayer seeking admission to the ancient stronghold that is the undead terror's home. Posing as a defender of virtue, this person is actually covertly planning to free the supernatural figure and pledge his loyalty to this demon in return for being granted immortality.
 I say this because the lyrics "...You call on me to solve a crooked rhyme ... As I'm closing in, imposing on your slumber ... Hiding from the light ... Hammering nails into a sacred coffin, you call on me for powers clandestine" more closely track with a Van Helsing-type figure coming to kill a Dracula character more so than they describe Masonic ritual scenarios.
  It makes sense this would be the real basis for the song since the band themselves have stated (albeit behind Nameless Ghoul masks) that the overall idea behind the Satanic cult stage show concept has more to do with their love for horror movies than actual Satanism. Although it's true the phrase, "Are you on the level", and "Are you being square with me?" were originally Masonic phrases, it doesn't mean the entire song is all about Freemasons. There's a chance Tobias wrote those lyrics totally unaware that these now common, everyday phrases have their origins in Freemasonry.
 Again, I don't know what the true meaning is any more than the rest of you do. This is just my alternate theory to also keep in mind instead of leaping right away to the Masonic connection.