In Pride and Prejudice it is all about land, when you talk about metaphors. In this novel, the character of a person is tied to their land ownership. For example, Pemberly has already been inherited by Darcy. It is self sustaining and solid. Then there's Bingley, who rents the manor house because he doesn't, as of yet, own his own estate. Then look at Mr. Collins and the Bennet's home (which they don't own).
One could also make a good argument for a metaphor of the dance in P and P. Yes, they are literally dancing, but deeper still is the delicate 'dance' that the women and men must go through in order to secure an acceptable spouse. They also must all dance to the tune of the social conventions and roles that are expected of them. Lizzie chaffes when she is confronted with them. Lizzie detests Collins and the fact that she had to 'dance' with him and was expected to do so.