Xa kufikwa ngokwakhiwa kunye noomatshini bokuhambisa umhlaba, izixhobo zombiwa ziphakathi koomatshini abaninzi nabanamandla abakhoyo. Embindini ekusebenzeni kwabo ngamazinyo amabhakethi, azizinto ezibalulekileyo ezinxibelelana ngokuthe ngqo nezinto zomhlaba ezimbiwa. Amazinyo ebhakethi enzelwe ukungena, ukwaphuka, kunye nokuphakamisa umhlaba, ilitye kunye nezinye izinto, nto leyo eyenza i-essentia