What universal themes can you find in Beowulf?

There are several themes that run through the epic poem Beowulf. One is that of seeing loyalty as a guiding principle for life. Another is the idea of gaining fame through heroic actions and feats. It is very important to Beowulf that others see him as great. Revenge is a third theme the runs through the poem. Revenge is an important motivator for both the monsters Beowulf faces and for Beowulf and his men.