Symbols are shown in red text whenever they are discussed, so you can easily track them through the work.
Heorot and Mead-Halls
The mead-hall is the symbol of a society: it is in this central place that the people gather to feast, socialize, and listen to the scop (bard) perform and thereby preserve the history of the people. Heorot, as the largest mead-hall in the world, symbolized the might and power of the Spear-Danes under Hrothgar.
Gold, Treasure, and Gifts
In Beowulf, gold, treasure, and gifts are less important for their economic value than their social value. In fact, gold can be seen as a symbol of social interaction: a lord rewards loyalty with gold, and in doing so inspires further loyalty. The transfer of the gold is also a kind of physical embodiment of the lord's duty to nurture his people. Gold can also act as a symbol of regret or a desire for peace: one way of avoiding a feud is to pay the wergild, the man-price, by compensating the family of the injured person with gold, to avoid more violent vengeance.