It took me a decade to find inner peace. I had to fight for it, tooth and nails.
I define it by having a sense of calmness that you feel in your mind and body. For that moment, I forget all things that bothers me and I seem to enjoy whatever I'm doing more. I get more immerse into the series I'm watching, the games I'm playing or whatever I'm reading. Nothing is forced, everything comes naturally and effortless. I don't care about nothing else except what I'm doing in that moment. Inner peace helps with focus and concentration and well as blood circulation. In fact, inner peace is what I strive for, every waking moment of my life is dedicated to finding my inner peace.