The ane kalu are the spirits of the Kaluli dead, a class of being who inhabit the invisible world that overlays the forest of Mount Bosavi. Kindly disposed toward their surviving kin, they can be summoned by a spirit medium to find lost pigs, track game, diagnose the causes of sickness, and give counsel, and their voices are heard in the calls of forest birds understood as 'gone reflections'. The path of the newly dead is said to run westward along the Isawa River into their country, and it is with these amiable dead, rather than with any high god, that the living chiefly negotiate.