Palo, also known as Las Reglas de Congo, is an African diasporic religion that developed in Cuba during the late 19th or early 20th century. It draws heavily upon the traditional Kongo religion of Central Africa, with additional influences taken from Catholicism and from Spiritism. An initiatory religion practised by paleros (male) and paleras (female), Palo is organised through small autonomous groups called munanso congo, each led by a tata (father) or yayi (mother).
Although teaching the existence of a creator divinity, commonly called Nsambi, Palo regards this entity as being uninvolved in human affairs and instead focuses its attention on the spirits of the dead. Central to Palo is the nganga, a vessel usually made from an iron cauldron. Many nganga are regarded as material manifestations of ancestral or nature deities known as mpungu. The nganga will typically contain a wide range of objects, among the most important being sticks and human remains, the latter called nfumbe. In Palo, the presence of the nfumbe means that the spirit of that dead person inhabits the nganga and serves the palero or palera who possesses it. The Palo practitioner commands the nganga to do their bidding, typically to heal but also to cause harm. Those nganga primarily designed for benevolent acts are baptised; those largely designed for malevolent acts are left unbaptised. The nganga is "fed" with the blood of sacrificed animals and other offerings, while its will and advice is interpreted through divination. Group rituals often involve singing, drumming, and dancing to facilitate possession by spirits of the dead.