The Blessed

Is it bad analogy?
Or is it only me?
The sniper slows
His heart down
To clearer target see

Balanced metal
Cold, blue steel
Never ventures thought
But blood is warm
Like mine, the norm
To think of what is wrought

A softer role
Must seem so droll
To those who brave the dark
But I'm no rock
From lesser stock
A tree of rotting bark

My weaker heart
Upset the cart
Of apples in my head
I left the scene
Unfit, unclean
To lie awake instead

If it's true
That what we do
Leaves no hole
In the chest
Hats off to you!
Your aim stay true
Surely, you are blessed!