I don't really believe in it and I have never pursued it either. I've had those resentful emotions too ofc, but I don't think I'd ever act on them. Maybe I'm a fool or a coward and I can understand people who go after someone who really hurt them or a loved one, but I just think revenge devalues the pain someone put you through and only makes the world a worse place.. but like I said, I can understand as long as it isn't something petty..