Izicatulethi zeSaliva ezidingekileyo ngokushesha emuva kwemibhalo ebizwa njengemibhalo yakwabo ayiqhamuka, zikhethwe ukuvumela isiphumo sokususa kunye nokuhlola ngokuphakeme kakhulu phambi komhlaba wokugcina imibhongo. Izicatulethi zakhiwo kuhluke kanye nokulandelana nokuhlola kwisebe somphilo esingabhedwayo, zikhethwe ukuba amasampula amanqaku anqume ngokuphakeme kunye nokususa ngokuphakeme mpintsi wokugcina. Ukungabhedwayo kwezicatulethi akuyona kuphela ekuseni lokuncedwa lembhongo kunye nokungavunyelwe kwezilimo, ukuze libe lingcono kwisebe lesikoleni kunye nesisekelo.