The Buddha explained that if you are hit by an arrow there is pain. If you are angry there is a second pain. The wise person makes do with the original pain.
Although both physical and mental pain seem to be unavoidable in life, discomfort or suffering – the mental tension of trying to avoid it – is avoidable. This discomfort is the secondary, unnecessary mental pain created by your ignorance of how the world really works. If you want to know how this world really exists and operates, look around you. This is how it all exists and works. Like this. This is what is happening.
The demand for reality to be different, now, from what it is in fact, is clearly impossible. What happens happens. Nothing else ever happens.
It is enough to fully realize this in order to live in peace and happiness – independently of circumstances.