Hideous Headchopping

I've built my little castle, 
Based on apathy. 
And now I'm truly armed, 
Against insecurity. 
Stone cold thoughts, 
Behind a grieving mask, 
Furious eyes, 
Analysing silly lies. 
Ferousious grey mass, 
Non-believing in a cross, 
An aim so insane, 
The last leaf must be slain. 
A wood-chopping sound, 
Goes in my head around, 
The tree that once stood 
Has now been chopped for good