Her post is called The Nuts and Bolts of Forgiveness.
One of those useful things was the realization that my forgiveness is not of the same quality as God's forgiveness. God's free and extravagant forgiveness of our sins in Christ is the basis of our forgiveness of each other. We don't forgive because we are nice people or because pain doesn't bother us; we forgive because Jesus died on a cross for our wickedness and we needed God's forgiveness so desperately.
It's one of those uncommon posts that is worth rereading several times. Thanks, Jennie.