The Dark Tower

I've ridden these roads a thousand times,
and told my tale hundreds more.
My journey is long, and my quest longer.
My nightmares are always the same,
as is the outcome of my eternal story.
I remember all my pain, all my woes,
for they are behind every door.
I am the slave of times curse,
and the master of my own demise.
I am the Gunslinger!
And time is not my own.