Ndau Sangoma Beads, The Thokoza Sangoma Tradition Has Its Origins Among The Swazi- And Shangaan-Speaking Peoples Of Southern Africa. The Thokoza ,Tradition Differs From Other Sangoma Traditions In South Africa In That Its Adherents Are Possessed By Non-Lineage Or ‘Foreign’ Spirits, In Addition To Family Ancestors. These Spirits Are Referred To As Ngoni And Ndau.