Final answer:
Revenge is an important theme in Beowulf, as depicted through acts of vengeance by various characters such as Beowulf and Grendel's mother.
Step-by-step explanation:
Revenge is indeed an important theme discussed in Beowulf. Throughout the epic, the characters seek revenge for various reasons, such as avenging loved ones, protecting their honor, or seeking justice. One example is when Beowulf seeks revenge on Grendel for killing the warriors in Herot Hall. Another example is when Grendel's mother seeks revenge on Beowulf for killing her son. These acts of revenge drive the plot and highlight the consequences of seeking vengeance.