Ukubala kuqala kwi-nani akuze ke kutshintshathsintshe ngonyuka kusehla kwenani. Kwimizekelo engasentla, ukubala kuqale ku-nye, waza watshintsha lo-nye ngokuthi kongezwe enye into ekwafana nale inye. Ngenxa yale nto okwakubala kokuqala kutshintshe ngo-nye, saza sathi xa sisongeza omnye u-nye kulowo sele ekho isiphumi siba ngu-mbini, sitsho sithi zimbini izinto. Kwakhona esi siphumo singu -mbini singatshintsha xa kuye kwafika enye into sitsho sithi xa izinto bezimbini ze kwafika enye ekwafana nazo sithi zintathu.