The Course calls the act of pardoning, or forgiving, one’s brother of what is just illusion anyway as the “power to release your savior.” (T-21.II.3:8) If we will entertain the idea that the Course is right, that the world is truly illusory and illusion made in madness, the step of pardon becomes very easy. It becomes, in madness, the only rational choice that one would make. We would not get angry if our brother were psychotic, though we might wish mightily that he were healed, especially if in his madness he is causing us pain. In effect, the Course declares that this characterization is exactly what is happening on a daily basis in our world. We are all, to one degree or another, steeped in a metaphysical madness.
On a deeper level, though, we have never left Heaven, and our real Self is very strong. We are indeed strong enough to let this world go, accepting correction because we see that we are wrong. (T-21.II.4:10) It is only the extent to which we live by guidance that we can see a more benign dream, the still illusory Real World granted our waking dream by the Holy Spirit. The dreams he gives, though still illusory, are happy, and by them we see our way clear.