Nightmare In A Damaged Brain (Bloodsucking Zombies from Outer Space)

My mind drifted in dirt and pain I was so weak and weary, The sun and also my soul enveloped black and dreary. Deep into the darkness I stood wondering, fearing, My heart smoldered deep within. But it had still continued beating Nightmare in a damaged brain - all night long White apparition glided nearby with an ancient grin, The air grew denser, death perfumed from the ghostly censer. Nightmare in a damaged brain - all night long Its eyes have the menace of a Demon, Its shadow hugs the stony ground. Do angels borne draw their curtains? A deathlike shroud never torn. Nightmare in a damaged brain - all night long Or am I dreaming instead?