If there is such a thing, I don't know where it is, nor how to move it.
I know only how to express forgiveness in concrete, physical actions. My hope in such expressions is that somehow, the "forgiveness muscle" will move---maybe just a tiny bit---and I'll be able to fulfill the commandment of the Good Master and open myself to the gifts He so earnestly desires me to have through this emulation of- and participation in- His inner life.
I was able to do that today and I feel a little more freedom, a little more readiness to face my own judgment, a little more innocence before His Sacrament. Yet, there is still so much more work to do.