Mali – Bamana Cults : Boliw, sacrifices The boliw regularly receive blood from sacrifices in order to call upon and influence the life force known as Nyama. Sacrificer. Nyizenso 1985 Sacrificer 2009 Feast of the Nampu. Nyizenso 1985 Sacrifice for the women’s society by the hunters. Nyasina 2005 Feast of the Nampu. Nyizenso 1985 Feast of the Nampu. Nyizenso 1985 Feast of the Nampu. Nyizenso 1985 Feast of the Nampu. Nyizenso 1985