Nightmares

Every night I go to sleep I dread it. There is no peace in sleep for me.
 
On good nights I am buried in memories of what has past: the night my tribe was taken, the many battles at the Horn, the night Bahamut was taken, the day Drachen left and those 3 wonderful years in the hands of the Empire. When I wake I lash out in fear, anger and confusion. Most of the time I only end up hurting myself but sometimes I will hurt anyone or anything around me. Since I found my freedom, my friendly pack of wolves have helped on those nights. They comfort and wake me before I go too deep into the nightmare.
 
On the bad nights Diabolos will visit me. The dream is always the same. There he stands in his dark majestic glory, with a black chalice in his hands. I know this chalice holds his power. He does not move to offer it to me. He is waiting for me to take it. I refuse.
 
Then comes the warriors, faceless and in matching armor. With weapons drawn they would attack me. I fight back to defend myself but they are too strong. I can hear their voices. They were taunting me for being weak, a disappointment to all and that I can't protect anyone. Over and over again. I can't take it, my will breaks and I turn to Diabolos. He smiles and offers me the chalice. This time I take it and drink deeply from it. It burns and tastes awful but I don't stop drinking. Once the chalice is empty, I hand it back to him.
 
With Diabolos' dark power running through my veins, I turn back to face my attackers but they run in fear. I laugh and cut them down. More warriors appear and I deal with them just as easily.
 
They send an army to fight me. This army is lead by a knight in silver armor and an enormous silver dragon. They attack with everything they have but they can't hurt me. I cut them down by the hundreds. I laugh as I make their deaths as slow and painful as possible.
 
I then turn to take on the dragon. He is ancient, wise and powerful but still no match for me. I dive under his jaw and sliced off his head.
 
Then comes the knight in silver. I wanted him to see me destroy his army. I wanted to crush his spirit just as much as his body. He was tough. He would take blow after blow but would not fall. We fought for what seemed like ages and I finally found an opening. I parried his sword and drove my hand straight through the armor into his chest. I rip out his heart and he falls to the ground dead.
 
I turn back to Diabolos and present him with the heart of the silver knight. He holds out his chalice and I place the heart in it. The heart starts to melt into dark energy. The energy would overflow the chalice and start to spread over the ground. I knew it would not stop till it covered the entire world. It kill every living thing it touches.
 
With no more need for me, Diabolos takes his power back so I could truly see what I had done. The army that stood against me were my tribesmen. I could even see my father's body in the carnage. The dragon I had kill was Bahamut. I knelt down next to the body of the silver knight and took off his helmet. The dead empty eyes of Drachen would look back at me.
 
And that is when I would wake up. In that moment there was only absolute terror. Why does he keep showing me this dream? Is it a warning or is it more of a promise what lies at the end of my current path.
 
I know it was his power that kept me alive in that prison and it is his power that I now use to defend my new comrades. How long can I keep using it without falling completely under his control? How long until I break?
 
I only know what I would be if I gave it up. Weak and helpless.