Isibane esibekwe phezu komhlaba esikhanyisa iNgaphakathi ngokukhanya kwendalo okwabiwe ngokulinganayo.Ifom elula, ethambileyo yenza isibane sibe yinto engabonakaliyo ngaphakathi.Ubukho beentlobo ezahlukeneyo zokuvula kuvumela uhlengahlengiso lweemfuno zomntu ngamnye zelightto zabasebenzisi.