This morning's Gospel reading at Mass was take from Matthew 18. Jesus wants us to forgive all our brothers and sisters from the heart if we want the heavenly Father to forgive us. This seems totally fair, but in practice, it can be very difficult for us as we all know. Ideally, to resolve the problem it would be best for us is to meet or contact the other party involved and show our desire for reconciliation, but this may not be possible for various reasons. The least we could do is to forgive from the heart so that when such an opportunity arises, we'll be ready. Of course, praying for the ones we have trouble forgiving is the very first move we should make.
I am thinking that it's through God's love that we are able to love others, then why can't we immerse ourselves in his ocean of mercy and "borrow" some of that mercy and use it to forgives others? Basically, we "make" God do everything through us.