It was like a hole that always lingered in my shadows, always ready to creep up, curl around my ankles and pull me down into the abyss. And when it did I was helpless. It clawed and grappled at my insides, ripping me apart at my seams, locking around my head and squeezing at my brain until all I could do was pull at hair in an attempt to fight through this unyielding barrier to the part of my brain where I could actually think. Trying to just cheer up was like drawing blood from a stone, frustrating and pointless. It wouldn't go away by itself; it would fester and grow until someone shone down that beacon of light that we all crave for. But there was no light, just myself and my demon.
Authors Note - Interpret this in your own way.