A poem to think about: Shadows of doubt

I did NOT write this poem. It was written by neal shusterman, however I love the way it flows, and it can really make you think. It's the kind of poem that's not gory or bloody, but can absolutely terrify you. That's why I wanted to share it with all of you.

Shadows of doubt
  by: Neal shusterman

In the blink of an eye, you might suddenly feel
That your world's been invaded by all things unreal.
They slink up behind you, and don't make a sound,
But there's nothing to fear... if you don't turn around.

In the pit of your stomach there rests a device
That can calculate how fast your blood turns to ice;
It measures the temperature nightmares will start,
Then divides it by beats of a terrified heart.

At the foot of your bed lies a blanket of fear,
You might think it's quite safe, but it's always quite near.
When its steel-woolen quilting wraps 'round you one night,
You will learn that its not only bedbugs that bite.

At the top of the stairs there's an attic I found,
That remained even after the house was torn down,
And it's filled with cobwebs of lonley old dreams
Which have grown into nightmares that swing from the beams.

At the mouth of the cave lives a shadown of doubt;
If you dare go in, will you ever come out?
Are there creatures who lurk where it's too dim to see?
Can you hear when they move? Are you scared yet? (Who, me?)

At the edge of the earth flows a rever of fear,
And it pours into space day by day, year by year.
As you shoot the cold rapids, and stray far from shore,
Do you notice your lifeboat has just lost an oar?

In the eye of the storm stands a ghost of a chance,
And around her all spirits are destined to dance.
She turns a cold gaze toward an unlucky few---
Don't dare look now, for she's staring at you.

At the end of the world stands a giant steel door,
And what lies beyond it, nobody's quite sure...
Is it crystal-clear heavens, or night blazing hot,
And which is more frightening: knowing or not?

In the face of the future we fly on our own,
Hoping our wings never turn into stone.
If you fall from that sky to the sea, will you drown?
Well, there's no need to worry... unless you look down.

At the back of your mind, there's a hole open wide,
Wheres the darkness is creeping in from the outside.
You can light rows of candles to cast the dark out,
But its always there hiding...
                                       ...in shadows of doubt