Defective elements in the personality are corrected by changes in distribution of libido, strengthening of the ego, adjustment of the superego, and correction of the self-image, which are achieved by transference, catharsis, insight, reality testing, and sublimation. In group psychotherapy, transference may be described as libidinal (related to parent figures), sibling, identification, or related to the group. Catharsis is effected by free association and by thinking and acts associated with current concerns, and is directed, induced, forced, or vicarious. Insight may be the result of verbal interpretation or emotional growth. The group itself is a tangible and pressing reality to each of its members. Sublimation is especially seen in activity groups for adolescents