“He [your brother, everyone] can do nothing that can hurt you, and by refusing to allow him to think he can, you tell him that the Atonement, which you have accepted for yourself, is also his. There is nothing to forgive. No one can hurt the Son of God. His guilt is wholly without cause, and being without cause, cannot exist. (T-14.III.7)”
Our true reality has not been affected by hurts, pain, suffering inflicted on us in this illusory world. Our brother has not really hurt us in any actually “true” way. It is all madness.
It sometimes helps, when a brother is attacking us, to think, “This is insanity. He is just being insane.” This is the absolute truth, and saying this type of understanding, silently, touches our hearts with the truth, and we can overlook what is happening. Because nothing has actually happened, in truth, there is nothing to forgive. But forgiveness is the one illusion that doesn’t build on others. Our forgiveness in this illusory world paves the way for the true reality, the real world. And our forgiveness softens our heart toward our brother.
In this quotation, Jesus is speaking on the level that to forgive is not even required, because nothing real has happened. Sometimes, in A Course in Miracles, Jesus speaks on another level, when he encourages us to forgive as the pathway to salvation. On this other level, forgiveness is seen as our function in this illusory, ruled by the ego of both ourselves and that of our brother.