We’ve all been there. Sometime in the past – possibly even the distant past – someone did you wrong. And you’ve nursed a grudge against him or her ever since. It takes a lot of mental and spiritual energy to keep a grudge going. A lot. What’s more, the object of your attention is probably blissfully unaware of it. So. Let. It. Go. It’s wearing a hole in your heart, not his/hers.