In Stephen King's novel "Under the Dome," the darkness of night triggers troubling thoughts that manifest into something more tangible. These thoughts transform into metaphorical zombies, illustrating how fears and anxieties can haunt us, especially when we are isolated or alone in the stillness of the night.

The quote encapsulates the essence of human vulnerability during sleepless hours, portraying a battle between the mind and the creeping dread that comes with solitude. It highlights the idea that without the light of day, our inner turmoil can become overwhelming and almost corporeal, shaping our mental landscape into one filled with fear and uncertainty.