Witch ceremonies almost permeate every aspect of the daily life of the Ghost Race; guests are welcomed with witch ceremonies, funerals require witch ceremonies, and even weddings necessitate the performance of witch ceremonies. For this reason, the position of the Great Witch is naturally the highest within the village, as only she is qualified to carry out these witch ceremonies.
However, it's clear that this funeral witch ceremony is only ceremonial in nature, as when the three approached, there was no fluctuation of magic power in the air. In other words, the routine life does not necessitate that kind of Summoning the Immortal Ceremony to expel foreign enemies.
Since the Ghost Race faces the ocean and backs onto the jungle, they have a rich resource of timber, which provides them with fuel for their livelihood.