is a complete self-study spiritual thought system. As a three-volume curriculum consisting of a , , and , it teaches that the way to universal love and peace—or remembering God—is by undoing guilt through forgiving others. The Course thus focuses on the healing of relationships and making them holy. also emphasizes that it is but one version of the universal curriculum, of which there are "many thousands." Consequently, even though the language of the Course is that of traditional Christianity, it expresses a non-sectarian, non-denominational spirituality. therefore is a universal spiritual teaching, not a religion.