With silence comes fear.

Then no matter where you are, in a crowded restaurant or on some desolate street or even in the comforts of your own home, you'll watch yourself dismantle every assurance you ever lived by. You'll stand aside as a great complexity intrudes, tearing apart, piece by piece, all your carefully conceived denials, whether deliberate or unconscious. And for better or worse you'll turn, unable to resist, though try to resist you still will, fighting with everything you've got not to face the thing you most dread, what is now, what will be, what has always come before, the creature you truly are, the creature we all are, buried in the nameless black of a name.
And then the nightmares will begin.

I’ll tell you now. That silence almost beat me. It’s the silence that scares me. It’s the blank page on which I can write my own fears. The spirits of the dead have nothing on it. The dead one tried to show me hell, but it was a pale imitation of the horror I can paint on the darkness in a quiet moment.

Then without any warning the car stopped. They were there.

"The ride's over," someone said. "End of the ride."

For a moment nobody got out. They just sat there. The driver cut the ignition, and after that there was silence. Complete, uncanny silence, more frightening than the most threatening noise or violence could have been. Night silence. A silence that had death in it. ("The Number's Up")

When the owl sings, the night is silent. (Quand le hibou chante, La nuit est silence)

Here is a list of terrible things,
The jaws of sharks, a vultures wings
The rabid bite of the dogs of war,
The voice of one who went before,
But most of all the mirror's gaze,
Which counts us out our numbered days.