Darkness

Darkness beckons and as you get ready for bed, and there's always a part of your mind that feeds your imagination of darker things.  Things that go bump in the night.  Perhaps that late night spooky movie wasn't such a great idea. But it's all make believe and imagination... Right?

 
But your rational mind gives way to feelings of the supernatural. You hear faint noises,  bumps in the night, and see eerie things in the shadows. But you tell yourself it's not real. 

Buy... Your subconscious mind has a different version of reality. But you really don't have to worry about those things... until you close your eyes. Your rational mind still tries to comfort those imaginary fears. Then you fall asleep, safe in the knowledge that is all make believe.

The real horrors are about to begin... For in your worst nightmares you are totally helpless and at the mercy of your subconscious fears. Trapped by unimaginable fear... tormented without end... unable to wake up... all night long until mornings first light.

When you finally escape, waking up physically and mentally exhausted, you remember only bits and pieces of that nights encounter with nightmares. But were they simply nightmares? Dreams that went terribly wrong? Our something more? Something supernatural and evil that are real in another reality that you were fortunate to escape from? Finally You are awake and alive. Those that don't escape never survive the nightmares of that night to talk about it... Dead in their sleep. Supernatural forces are clearly a possibility,  especially if you believe in the concept of evil... the devil and demons.

Not even Sam or Dean could help you in your nightmares. 
But,  not to worry... Just choose your eyes and drift off to sleep. Sweet dreams.  
And that letter... Open at your own peril.