Nightmares

What of the shadow that moves through the trees? The darkness you're not sure you've seen. A movement, a whisper, an eerie stiff breeze A nothingness, nightmare, a dream. A flickering horror who jumps in the night, A demon who feeds on your fears. The product of irrational childhood fright, A monster who thirsts for your tears. A thought and a worry, A small seed of doubt- planted deep in your mind it will grow. But maybe I'm wrong, and it is just a branch.. It could just be a shadow you know.