lit. abyss and marsh, meeting place of fish and beast—
渊薮
abyss of ocean—
渊海
The sea of bitterness has no bounds, turn your head see the shore (idiom). Only Buddhist enlightenment can allow one to shed off the abyss of worldly suffering.—
苦海无边，回头是岸
abyss of worldly suffering (Buddhist term)—
苦海
no less than from heaven the abyss (idiom); differing widely—