Mu nganda zigezweho no mu buzima bwa buri munsi, vis ni nto ariko zigira uruhare runini. vis z'icyuma kidashonga zabaye amahitamo ya mbere mu gukenera gushyirwa mu nganda zitandukanye bitewe n'uko zirwanya ingese neza, zikomeye kandi zimara igihe kirekire. Byaba ubwubatsi, inganda zikora imodoka, ibikoresho by'ikoranabuhanga, cyangwa imitako yo mu rugo, vis z'icyuma kidashonga zishobora gutanga ibisubizo bihamye kandi byizewe byo guhuza kugira ngo zihuze n'ibikenewe bikomeye mu bihe bitandukanye.