Final answer:
Grendel's merciless killing is characteristic of a monster, while Beowulf's bravery and strength demonstrate heroism. Their contrasting qualities highlight the epic's themes of good versus evil. Comparing them emphasizes their roles as representations of monsters and heroes in the narrative.
Step-by-step explanation:
In Beowulf, Grendel's actions in battle reflect the attributes of a quintessential monster. He silently stalks and ruthlessly kills the warriors of Heorot, an action described in the epic: "He seized one sleeping man...bit into his bone-lappings, bolted down his blood and gorged on him in lumps." These monstrous traits contrast sharply with Beowulf's heroic qualities, notably his bravery and strength. Beowulf announces his intention to fight Grendel unarmed, demonstrating his valour: "When it comes to fighting, I count myself as dangerous any day as Grendel." The contrasting qualities of Grendel's darkness and savagery with Beowulf's light and honor underscore the poem's broader themes of good versus evil.
Beowulf's actions in battle serve as an embodiment of the heroic archetype. His courage, effectiveness in combat, and willingness to face danger for others are made evident when he triumphs over Grendel, ripping off the monster's arm. This act cements his status as a hero and exemplifies the differences in motivations and methods between heroes and monsters, with Beowulf rallying warriors to a noble cause, whereas Grendel seeks to isolate and destroy.
Comparing and contrasting Grendel and Beowulf reveals the chasm between monstrous and heroic qualities. Grendel is driven by base instincts, wreaking havoc with no greater purpose than to satisfy his malevolence, while Beowulf is depicted as a savior figure, his actions driven by a code of honor and protection of the community, fighting not for personal gain but for the safety of others, following attributes admired in Anglo-Saxon society.