Sounds like the unspeakable scene is a a suicide. Inviting the suicidee to 'strike a nerve and leave a scar [he] won't forget' is challenging him to knife his wrist, feel the pain and realise he doesn't want to go through with it. The last verse is a bit ambiguous though - 'just when you think that you're okay, you start hearing voices' could mean either that the attempt was interrupted or that he went through with it.
Sounds like the unspeakable scene is a a suicide. Inviting the suicidee to 'strike a nerve and leave a scar [he] won't forget' is challenging him to knife his wrist, feel the pain and realise he doesn't want to go through with it. The last verse is a bit ambiguous though - 'just when you think that you're okay, you start hearing voices' could mean either that the attempt was interrupted or that he went through with it.