Take away the light

Put a shadow behind a word and you will find the sun has vanished.
Steal a light and you will find that fear has filled its place.
Fill a void with darkness and you will find the emptiness behind you.
Take away the brightness of the day and you will find the night has stolen in.
Blot the white behind the black and you will find a haunted soul rising from the paper.
Caress the silent devil and you will find all things have slipped away behind your back