Isikhwama sokuzalanisa isithombo kulula ukugxila ekutshaleni nasekutshalweni kabusha kuthuthukisa kakhulu izinzuzo zezomnotho ezisetshenziswa kabanzi ezimbali, imifino, amakhabe nokunye ukutshala kwezolimo kwazizwa isikhwama sokutshala esiphefumulayo, asiminyanisi izimpande eziqinile, isikhwama sokutshala esizwakalayo sezitshalo esicabangela ukuvikela imvelo umhlaba omusha ohlaza okonakele.