Vona du Toit was influenced by the work of Schossberger & Weinstein, an OT and a psychiatrist working in a work rehabilitation centre in Israel. They describe four stages of occupational rehabilitation: self awareness, self presentation, participation and contribution and the type of work suited to each level.
Schossberger, M, D & Weinstein, B (1964) Therapeutic progress as reflected in work and creativity. Kfar Shaul Work Village, Israel