The title Sau Mai Kedekede originates from the Tongan word “Hau”, denoting the divine nature of the Tu'i Tonga suggesting the frequent intercourse amongst the chiefly houses of Lakeba and Tonga in pre-Christian times.
The investment ceremony for the Sau Ni Vanua takes place in Tubou on Lakeba.
During the ceremony the recipient will have a piece of bark cloth tied on his arms by each of the Ramasi and the coronation turban or salasiga placed upon his head by the Vakavanua.
He also receives the coronation cup containing kava from the Vuanirewa Nobles, which he must drink to affirm his becoming Sau Ni Vanua O Lau.
The Sau's installation concludes with the removal of the arm bands and ritual bath after four days.