Olokun is the orisha of the deep sea, the owner of the ocean floor, of the vast wealth and mystery held in the depths, and, in some lineages, of the dead who lie beneath the waters. Where the sweeter orisha of the sea are associated with the surface and the shore, Olokun is the abyss itself: the dark, cold, unmeasured deep whose bottom no one has seen, at once the source of immense riches and a power of overwhelming danger. Olokun's gender is understood differently in different traditions, male in some lineages, female in others, and in many best regarded as beyond or encompassing gender, a fitting ambiguity for a deity as unknowable as the ocean's floor. A widely told narrative captures the danger: enraged, Olokun once rose and sent the waters to drown humankind, and the flood was checked only when the orisha, on the counsel of Orunmila, had Ogun forge a great chain with which Obatala bound Olokun to the bed of the sea, so that the deep is held in check but never tamed, and its master waits below, chained yet immense.
In the diaspora religions of Cuba (Lucumi or Santeria) and Brazil (Candomble), where the worship of Olokun is strong, the orisha is honoured with deep reverence and associated with profundity, wealth, health and the secrets of the sea, and, as with the other orisha, practitioners have drawn correspondences with figures of the Catholic calendar. These are living religions, and Olokun is among their most awe-inspiring powers, the orisha of the unfathomed deep, owner of the ocean floor and of the riches and the perils that lie beyond the reach of light.