Ancient nemesis

It was night time and I was done with my work of service
The divine master was fed and reading a novel of graphics
I thought I would work on a technical subject of interest
I had no purpose in mind other than set curiosity to rest

Suddenly my mind froze in mid thought: an old daemon arrived
It was a friend from a colder climate that had survived
It used to accompany me when I rode at the head of a horde
Raging barbarians who ventured to satisfy blood lust stored

I was the worst amongst them, notorious for my deep rage
When my horse was sighted people fled as before a plague
I was ready to maim and kill and destroyed villages entire
My anger was never drained and increased with each encounter

Sitting in my living room I had to hold on with strength
To quell the demon who held me captive with each breath
I managed finally to distract my mind through poem's flood
Only evidence left of demon was my hand stained with blood

I knew that the demon would return for yet another bout
It would sneak up on me unexpected ready to cause a rout
But I had started on a journey to escape from the ghoul
And I will conquer myself first before I let it take my soul