Paradise Lost how is hell both a psychological state and a physical place?

In "Paradise Lost," hell is depicted as both a psychological state and a physical place. It is a physical underworld where Satan and his fallen angels are imprisoned, but it is also a psychological state of despair, torment, and separation from God, reflecting the inner turmoil of the damned souls. This dual portrayal serves to illustrate the complex nature of damnation and the consequences of rebellion against divine order.