Utwugarizo ni igice cyingenzi cyo gushiraho no gushiraho impumyi. Utuza dufata impumyi neza ahantu hifuzwa, yaba urukuta, idirishya cyangwa igisenge. Batanga umutekano n'inkunga, bafata impumyi mu mwanya bakabuza kunyeganyega cyangwa kugwa. Hariho ubwoko butandukanye bwurutonde, nkimbere yimbere, bikoreshwa kugirango turebe kureba mu idirishya; Udukoni twinshi twinshi, gutanga ibisobanuro byinshi hanze yidirishya; Kandi uhindagurika ku ntera, zikoreshwa mu humura impumyi hejuru. Mugushiraho ubwuzuzanye neza kandi ubikemure imigozi cyangwa izindi mbaho, impumyi ziguma mu mwanya kandi zikore neza, zemerera ibikorwa neza no guhindura impumyi nkuko bikenewe.