The dwellers of hell are more upset about their not becoming the dwellers of Paradise than their becoming the dwellers of hell. Their sorrow is because of losing Paradise. Regret and spiritual agony, which the dwellers of hell suffer from, are more painful than the fires of hell. When they are in hell, they are shown Paradise and are told: "This is the place that was meant for you, not the hell that you threw yourself in. You were created for heaven; you chose hell yourself."
source : erfan.ir