Hidden in my Cellar

I hear the creature beating down my cellar door
With a hellish roar it yells, "Let me in little lamb"
It's massive form is swelling up the floor
Spikes stick out the boards, and no more
Can I ignore the callings of the damned
Forged by sorcery, summoned by forbidden arts
Its only function is to tear apart my fragile heart

Evil looms outside my room wanting suffering unending
I feel the chill of doom, impending death from one so empty
Locked away behind an ego with its hinges bending
The door is dented and I'm fearful it will soon gain entry
The cruelty it promises expressed in every moan
"No! I won't allow you to roam free on your own."

I take the gun the angels lent, and blast the monster back
It only laughs while nauseous gas seeps out the smoldering crack
The poisonous fog thickens until I'm bereft of sight
And I've lost the will to fight when the tentacles attack
Its tendrils tighten, binding me; I'm left breathless and blind
The entity submerges me inside its tainted mind

I cry when it explains that it has been since I was born
Lurking in my cellar, I'm the skin it's always worn
My purpose is to be its slave, there is no chance of winning
I can't defy what I am, I've obeyed since the beginning
Denying it exists won't prevent the prickling thorns
No choice but to live with it, knowing nothing but regret
The only silver-lining is that one day I may forget

Its voice is now a parasite that slithers through my head
Since it can't escape my cellar, it possess me instead
It uses me to spread all its lust, chaos and dread
I'm forced to be its puppet, I'm its plaything til I'm dead
Those innocent unfortunates can't see behind my lids
Well hidden in my cellar lives a monster I call Id