THE EVIL PRIEST WILL MAKE THE BED
WHILE THE VICTIM NODS HER HEAD.
ONCE SHE'S BOUND, TOO LATE TO QUIT.
SHE'LL FEEL HIS HANDS, SHE'LL TASTE HIS SPIT.
HE'LL BREAK THE SEAL AND THRUST INSIDE,
SHE LIED SHE TRIED SHE CRIED SHE DIED.
Perhaps the bed as in her eternal resting place? She'll be raped then killed...Crowley DID enjoy sex rituals. (What guy wouldn't?

Somebody put what they think, I don't know, I'm just taking stabs with theories. It's just my way.
Edit:
Also, may I point out that Cassie is showing in all of this that she hates Bree's religion with all the inquisition and crusade things...Did anyone notice the "Casket" was wrapped in a red cross? A lot of connections with hate towards non-Christians...In the unscrambled "What" anagram it says "Hateless shits"...Fine, it might not be that interesting, but I thought it was.