depths of Hell; bottom of the abyss
Literal reference to the deepest part of the Buddhist hell (奈落). Often used in dramatic or literary contexts.
See also: 奈落
The sinner was cast into the depths of Hell.
abyss; inescapable situation; rock bottom
Figurative use for a hopeless, inescapable predicament or the lowest point in life. Often used in phrases like 奈落の底に突き落とされる.
Losing my job, I feel like I've been thrown into the abyss.
He hit rock bottom because of debt.