But they believe in the survival of the person after death, and they believe in spirits--especially evil spirits.

It may be that their lack of any idea of a beneficent God, and their intense consciousness of evil influences, result from the terrible hardships of their lives.

Having no special blessings for which to be grateful to a kind Creator, they have not evolved a conception of Him, while the constantly recurring menaces of the dark, the bitter cold, the savage wind and gnawing hunger, have led them to people the air with invisible enemies.

The beneficent spirits are those of their ancestors (another Oriental touch), while they have a whole legion of malevolent spirits, led by Tornarsuk, the great devil himself.
They are constantly trying to propitiate Tornarsuk by incantations; and when they kill game, an offering is made to him.

The devil is supposed to have a keen appreciation of these tidbits.