Fritz Perls, who helped to develop Gestalt therapy, was influenced by Reich, Jung and Freud. The key idea of gestalt therapy is that Freud overlooked the structure of awareness, "an active process that moves toward the construction of organized meaningful wholes... between an organism and its environment." These wholes, called "gestalts", are "patterns involving all the layers of organismic function – thought, feeling, and activity." Neurosis is seen as splitting in the formation of gestalts, and anxiety as the organism sensing "the struggle towards its creative unification." Gestalt therapy attempts to cure patients through placing them in contact with "immediate organismic needs." Perls rejected the verbal approach of classical psychoanalysis; talking in gestalt therapy serves the purpose of self-expression rather than gaining self-knowledge. Gestalt therapy usually takes place in groups, and in concentrated "workshops" rather than being spread out over a long period of time; it has been extended into new forms of communal living.