PART 12 out if 16: We heal our perception by forgiving the world for what it did not do. * Forgiveness is the answer to our separated condition. * Forgiveness is the Course’s unique and original message, yet is also the heart of the Holy Spirit’s message to humanity. * Conventional forgiveness, in which we forgive another for his sin against us, is not real forgiveness. * Real forgiveness is a shift in perception, in which we let go of the perception that a sin occurred. * The Course’s thought system is one big rationale for the idea that sin is unreal and that forgiveness is justified.