The burst of light certainly does
something even if it doesn't seem to illuminate anything. It's almost as if there's not really anything physical
to illuminate. But regardless, the heartbeat seems to speed up more and more until there are no breaks between beats anymore and it's just a constant droning that grows to a fevered pitch the feels like it's splitting Ryan's skull in two as the faint shimmer in the darkness explodes outward, burning the image of something indecipherable into Ryan's mind that blots out every other thought.

Meanwhile in the physical world the creature seems to lurch and twitch and as Melody pelts it with bombs it suddenly splits open all over, bursting into a faintly twitching mess of limbs and guts, revealing an unconscious Ryan in the middle of it.