I'm with Wil. I don't see any inherent divinity in forgiveness. This I speak on behalf of my departed father, the kindest atheist I ever knew well. I think it's just the humane in action. Some religious people, OTOH, will hold grudges until Mahapralaya. As far as 'wanting to understand' goes, when people are in differing paradigms, it's nigh impossible to understand because of the programming of what is truth. Whether one wants to or not is largely irrelevant as to the ability to do the nigh impossible.