As stated by 'thickets' the song seems to refer specifically to the 'Haunter of the Dark' and the lyrics seem to imply a unhappy connection/conversation between the thing from within the Shining Trapezohedron and the 'witness' of it's (inevitably) horrible release. In mythos terms it seems to suggest the release of Nyarlathotep through the gem when the lights fail. I hear two voices in the song alternating from the released Horror and the witness.
As stated by 'thickets' the song seems to refer specifically to the 'Haunter of the Dark' and the lyrics seem to imply a unhappy connection/conversation between the thing from within the Shining Trapezohedron and the 'witness' of it's (inevitably) horrible release. In mythos terms it seems to suggest the release of Nyarlathotep through the gem when the lights fail. I hear two voices in the song alternating from the released Horror and the witness.