Aaron Dexter Bray
Your skin begins to split open. Black light bursts from the gashes as the sound becomes all consuming. More splits, skin rending apart, sound roaring through you in agony. Head thrown back, black light streaking out in every direction, your body rising into the air. The sound takes almost physical shape, your corporeal form disintegrating into a column of pure negative light energy...
...Is probably how I can best describe what it feels like to listen to Sutekh Hexen's side of this; while Blsphm follow that with specks of ash suspended in dark red haze, the only remaining vestiges of your body floating in the thick miasma of droning sound and light after the fabric of this reality has been irreversibly altered, the ritual completed.