Adlivun

In Inuit mythology, Adlivun (those beneath us; also known as Idliragijenget) refers to both the spirits of the departed who reside in the underworld, and that underworld itself, located beneath the land and the sea. The souls are purified there, in preparation for the travel to the Land of the Moon (Quidlivun), where they find eternal rest and peace.  Sedna, Tornarsuk and the tornat (spirits of animals and natural formations) and tupilak (souls of dead people) live in Adlivun, which is usually described as a frozen wasteland. Sedna is the ruler of the land, and is said to imprison the souls of the living as part of the preparation for the next stage of their journey.
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[Native American] The Adlivun are in Eskimo myth (Canada and Arctic) "Those Beneath Us" or those in the underworld or the Underworld itself. It is the home of Sedna, goddess of the sea. This is where the dead are purified before continuing on to the Land of the Moon.