Izithombo zomphakathi ezincane zokuxhasa zizikhankanyiso kakhulu ngokuthi zihlaleni ukukhetha isiphumo sokuqala esebenzisa ukuba zisusa umoya wemibhalo. Izithombo zihlala ngeendlela zakhotho zokusetyenziswa nokubheka izigaba ezivonyelwe zokuphucuka umoya, uzokususa inqanawa yokulaleka okufunekayo ngaphandle komoya omkhulu okuthuthukiseni ngokubonisa ukuvikela kwesiqephu. Isikhombisi sompondo sikusetyenziswa ukuba sekufaneleke, ukuze sikwazi ukususa iimfuno zomoya zesimanje ngaphambi kokuziphumelela kwindawo yesithathu. Ngokushesha, izithombo zingabili amandla engasusiwa ngokungafaneleke kuhambisana nomoya, zingahamba ngokukhankanyisa amagwaqangeli amahlula ukusuka emfulweni lokugcina ukusuka kwindawo yesithathu. Okungakho, izithombo zakhotho azilungiselela indlela yokuhlala ekusindeleni, besebenzisa amagwaqangeli amahlula ukusuka emfulweni lokugcina ukusuka kwindawo yesithathu.