Isitayela sifanayo nendawo yokugcina okungezona, isikhumba esikhanyayo. Ayikwazi ukugcina isikhala kanye nendawo yokugcina, iyathwala. Isikhala sifaka isikhumba esikhanyayo kwezinye izinto zokugcina kanye nezithuluzi zemfundo.