Vertex kapena Vertex imawonetsa komwe ndi momwe mphamvu zomwe zidachitika m'miyoyo yapita zidzaonekera m'moyo uno. Nyumba Yakhumi ikuwonetsa ntchitoyi. Mtengo ndi chikhalidwe cha nkhanizi zitha kukhudzidwa m'njira zina. Koma osati mpaka pomwe sangakonzeke. Zambiri