The psychology of forgiveness
Lets face it, forgiveness is harder than we as Christians like to admit.
The more pious you are the less you are likely to admit to that but unwillingness to admit to it doesn't make it any less true.
It turns out that there is a good reason for it physiologically
Of course because we can afford to hold little grudges is not a good reason to do so. That after all, is part of the Christian condition; to resist the natural human condition but I think it helps to understand don't you?
Check out the article and let me know if you think it has helped you.