Jengu

Sources present the jengu as an indigenous institutionalized category of water spirit among Sawabantu-speaking coastal peoples rather than giving a single mythic origin tale. Scholars note affinities between miengu and other Gulf of Guinea water-spirit complexes (for example bisimbi/simbi in Kongo religion) and suggest possible regional connections, but the supplied materials do not record a single emic creation or genealogical origin narrative for the jengu.

Descriptions in the surveyed sources commonly depict miengu as beautiful, mermaid-like beings with long hair; a distinctive detail reported in summaries is that they have 'beautiful gap-teeth.' Representations vary by ethnic group, and sources caution that the English label 'mermaid' is an imprecise analogue for the institutionally embedded spirit category.

Traditional accounts describe miengu as intermediaries between humans and the ancestor/spirit realm: they receive offerings and can return prophetic messages (for example at Ngondo). They are believed to bring good fortune to worshippers and influence human and communal fortunes tied to waterways (fisheries, success in pirogue races, seasonal markers) and to provide healing when biomedical measures fail. Jengu specialists perform sacrifices, administer ritual medicines (including emetics), prescribe taboos, and stage controlled underwater presentations of tribute; collectively these practices secure miengu favor, health remedies, and communal guidance.