The main theme of Beowulf is heroism. This involves far more than physical courage. It also means that the warrior must fulfil his obligations to the group of which he is a key member. There is a clear-cut network of social duties depicted in the poem. The king has an obligation to behave with generosity. He must reward his thanes with valuable gifts for their defense of the tribe and their success in battle. This is why King Hrothgar is known as the "ring-giver." He behaves according to expectations of the duties of a lord when he lavishly rewards Beowulf and the other Geat warriors for ridding the Danes of Grendel's menace.
But the thanes have their obligations too. …
