Answer:
Hell is connected to the Earth by a bridge. We tend to associate light with good and darkness with bad or evil. If Heaven is filled with light, it must be good and pure... Hell is filled with evil. The phrase "darkness visible" is like an oxymoron - it is like you can almost see or touch the evil there. Is this hell a physical state or a spiritual state? Hell is characterized by darkness, and his "hell" is doomed. They cannot get out and are enclosed on all sides of Hell. The darkness is exposed by contrast to what heaven looks like.
Step-by-step explanation: