Roog, called Roog Sene among some Serer communities, a name understood to mean something like "Roog the Immensity" or "the merciful Roog", is the supreme being and creator of the Serer people of Senegal and the Gambia. In Serer religion (a fat Roog, "the way of the Divine"), Roog is the self-created source of all life: he sees, knows and hears everything, and he made the world, but he is felt to be remote from its daily affairs and does not intervene directly in them. This makes Roog a clear example of a pattern common across West African religion, the acknowledged but withdrawn high god, the creator recognised as the origin of everything yet approached, in practice, not directly but through nearer powers. In Serer tradition those intermediaries are the pangool (singular fangool): the ancestral and tutelary spirits, the sanctified dead and guardians of lineages and places, who stand between the living and Roog and who receive the offerings and the appeals of everyday religious life.
The Serer world-view thus holds together a single distant creator and a rich body of ancestral spirits close at hand, the one the ultimate source, the others the mediators through whom that source is served. It should be said plainly that the documentary record of Serer religion available in general reference is thinner and less evenly reported than that of larger West African traditions, and fine points of belief and practice vary between communities and are not always well attested; what is clear and consistently reported is the essential shape, a remote, self-existent creator honoured through the pangool. The Serer are a living people, and their traditional religion persists alongside Islam and Christianity in the Senegambia; Roog remains its acknowledged supreme being, the merciful Immensity, creator and all-knowing source, served through the ancestral spirits who stand nearer to the world.