Many years ago in the early 2000s I stumbled upon this beautiful piece of poetry that shaped me and always act as a reminder to control Anger and avoid hatred.. 

THE MAN I HATE

The moment I started hating a man, 
I become his slave. 
I can't enjoy my work anymore because he even controls my thought.
My resentment produce too many stress hormones in my body and I become fatigued only after a few hours of work.
The work I formally enjoyed is now drudgery.
Even vacations cease to give me pleasure.

 It may be a luxurious car that I drive along the lake fringed with the autumnal beauty of maple, oak and birch. 
As far my experience of pleasure is concerned, I might as well be driving a wagon in mud and rain.

The man I hate hounds me wherever I go. 
I can't escape his tyrannical grasp on my mind.
When the waiter serves porterhouse steak with french fries,asparagus, crisp salad and straw-berry shortcake smothered  with ice cream,
it might as well be stable bread and water.

My teeth chew the food and I swallow it, but the man I hate will NOT allow me to enjoy it. The man I hate may be miles away from my room; 
but more cruel than any slave driver,
He weeps my thought into such a frenzy that my innerspring mattress becomes a rack of torture.

The lowliest of the serfs can sleep, but not i.
I really must acknowledge the fact that I am a slave to every man on whom I pour the vials of my wrath.

Credit :S L McMillen from the book : NONE Of THESE DISEASES: THE BIBLES HEALTH SECRETS FOR THE 21st CENTURY, pp. 73-74