Symbols are objects, characters, figures, or colors used to represent abstract ideas or concepts.
While one could try to analyze Calpurnia and Portia as full characters in their own right, they function primarily not as sympathetic personalities or sources of insight or poetry but rather as symbols for the private, domestic realm. Both women plead with their husbands to be more aware of their private needs and feelings (Portia in Act II, scene i; Calpurnia in Act III, scene ii). Caesar and Brutus rebuff the pleas of their respective wives, however; they not only prioritize public matters but also actively disregard their private emotions and intuitions. As such, Calpurnia and Portia are powerless figures, willing though unable to help and comfort Caesar and Brutus.
More main ideas from Julius Caesar