Themes are the fundamental and often universal ideas explored in a literary work.
The concept of identity is mainly based on ancestral heritage and individual reputation. It's clearly a central theme in the poem. Characters are unable to talk about their identity or even introduce themselves without referring to family lineage. While heritage may provide models for behavior and help to establish an identity, a good reputation is the key to solidifying and augmenting one's identity. Beowulf illustrates also the Germanic heroic code, like warriors's loyalty; political skills in kings; cerimoniousness in women; and good reputation in all people. These codes are often in tension with values of the medieval Christianity. While the code maintains that honour is gained during life through deeds, Christianity asserts that glory lies in the afterlife. Similarly, while the warrior culture dictates that it is always better to retaliate that to mourn, Christian doctrine advocates a peaceful, forgiving attitude toward one's enemies.
Motifs are recurring structures, contrasts, or literary devices that can help to develop and inform the text's major themes.
In Christian medieval culture, "monster" was the word that referred to birth defects, which were always understood as an ominous sign from God, a sign of transgression or of bad things to come. In keeping this idea, the monster that Beowulf must fight in this poem seems to represent an inhuman or alien presence in society that must be exorcised for the society's safety. Intimately connected to the theme of the impotance of establishing one's identity is the oral tradition, which preserves the lessons and lineages of the past, and helps to spread reputation. Beowulf contributes to the tradion of oral celebration of cultural heroes. Like Homer's Iliad and Odyssey, Beowulf was passed on orally over many generations before being written down.
Symbols are objects, characters, figures, or colours used to represent abstract ideas or concepts. Because ritual behaviours and tokens of loyalty are so central to pagan Germanic culture, most of the objects mentioned in Beowulf have symbolic status not just for the readers but also for the characters in the poem. For example the great banquet at Heorot after the deafeat of Grendel represents the restoration of order and harmony within the Danish people. The preparation involves the rebuilding of the damaged mead-hall, which, in conjunction with the banquet itself, symbolizes the rebirth of the community. The speeches and giving of gifts, essential components of this society's interactions, contribute as well to the sense of wholeness renewed.
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