Picture this, if you will. You get to Heaven and God says, Listen, we’ve got a backlog of cases up here, so we’d like you to decide the fate of the people who mistreated you in life. Okay? Thanks.

Suddenly you’re behind a judge’s bench with gavel in hand. A stream of familiar faces flows into the courtroom. People from your past. They’re led to a table to await your decision. So. If you cast them all away forever, aren’t you doing to them what they did to you? Now who’s the perpetrator?

Isn’t it true that people who treated you poorly justified it that you hadn’t met their expectations? Or that you weren’t trying hard enough. Pulling your weight. That boss who yelled at staff. Didn’t she believe that employees need to fear the boss or they won’t meet deadlines? That ex who was cruel to you. Didn’t he feel he had a right to do that, since you weren’t the person he wanted you to be?

So this is the case for forgiveness. If you were in a position to mete out justice, it’s possible you’d throw the book at people – or even your gavel if you were in a mood – and become just as bad as them.

Not only is it better for your mental health to let go of the things you can’t change anyway. It’s possible that you’ve mistreated others without even realizing it. When you felt someone wasn’t trying hard enough, did you yell or give them the cold shoulder? Someone’s in the passing lane on the highway driving too slowly. Did you tailgate them? Of course, these are relatively minor infractions, but it all falls on the spectrum of disrespect. Keep your own karma clean: forgive, forget, and put the past behind you.