"Distressed and hungry, they will roam through the land; when they are famished, they will become enraged and, looking upward, will curse their king and their God." NIV translation
Those that seek answers from the world will end up without peace as the world cannot bring peace to the soul of a man. They will also be hungry as they forget the great provider who is God. Ultimately, they will curse God and blame Him for their situation even as He waits for them to turn to Him.
"Then they will look toward the earth and see only distress and darkness and fearful gloom, and they will be thrust into utter darkness." NIV translation
Those that seek worldly answers will, in the end, find that the world has no answers. Because they have turned their back on God, they will be judged and spend eternity without God.
Hell is a place without light (because God is light) and the darkness will be total. They didn't want anything to do with God and so they will get what they wish but find it was not what they thought.