It is the mask that fear wears.
Image From: Memory-Alpha
Try it on yourself.
The next time that you get angry, ask yourself, "What am I afraid of?"
And then wait for the answer.
Then ask yourself, "Is this something that I want to be afraid of?" "Is this something to be afraid of?"
The answer will surprise you.
Most of the time, you will find that you are afraid of something that you either:
Have no control over, do have control over and can do something about, or don't *want* to do anything about.
That's when you realize that, either way, you are wasting your time and energy being angry.
Do something about the problem and alleviate your fear.
Don't do something, and accept the situation.
Don't "try" to do something.
To quote Yoda, "Do, or do not. There is no try."
'Nuff said, LOL!!