The three reasons why Grendel led a painful life are:
Lived in swamplands.
Celebration noises bothered him.
Poor relationship with God.
Explanation:
'Beowulf' is an Old English epic poem; centered on the titular character, Beowulf. He is a warrior and heroic character in the epic.
Grendel is one of the monsters and antagonists that Beowulf crosses paths with. Grendel has led a painful life in epic. Grendel is a cursed descendant of Cain. This curse has led him to live a painful life in swamplands. He was easily bothered by the noises of celebrations. Another reason for his painful life is his poor relationship with God. Because he is cursed, he did not have a relationship with God, which furthered his pain.
