ACIM helps us to establish a basis for recognizing what is real and what is illusion. What is real arises from the intention of loving acceptance, which is the expression of being one with all Creation. The experience that comes from thoughts of fear and divisiveness is not real because it does not support the reality of Creation being whole and undivided. It is upon this recognition that the use of true forgiveness rests. There is no basis for judging what is not real. There is no reason not to love what is real. Forgiveness allows us to remember the reality of what we have falsely judged, releasing our natural instinct to love again.