The state of sinlessness is merely this: The whole desire to attack is gone, and so there is no reason to perceive the Son of God as other than he is.
The need for guilt is gone because it has no purpose, and is meaningless without the goal of sin.
~ Jesus, A Course in Miracles 25.5
Forgiveness paints a picture of a world where suffering is over, loss becomes impossible and anger makes no sense. Attack is gone, and madness has an end. What suffering is now conceivable? What loss can be sustained? The world becomes a place of joy, abundance, charity and endless giving. It is now so like to Heaven that it quickly is transformed into the light it reflects. And so the journey which the Child of God began has ended in the light from which it came.
Father, we would return our minds to You. We have betrayed them, held them in a vise of bitterness, and frightened them with thoughts of violence and death. Now would we rest again in You, as You created us.
~ Jesus, A Course in Miracles
You who were created by love like itself can hold no grievances. To hold a grievance is to forget who you are.