Throwing in the towel

I am pinned down on the floor  
trapped in a room with no door
I can see only a small light
but I no longer have the will to fight

I would like to get free
but this things that way on me
are heavy and hard to be pushed away          

and my body doesn't want to obey

I'd like to know how to get out
from this prison of doubt
from this prison of sadness
from this prison of darkness