You see, that which is exposed to the exterior ... is smooth and dry and clean. That which is not ... underneath, is slimy and filled with fungus and crawling with worms. It is another life that is parallel to the one we manifest. It's there. The way worms are underneath the stone. li you don't recognize it ... (Whispering.)it eats you.
I think that Fefu's discussion of worms here lends itself to, and is analogous to, the larger discussions and implications about the oppression and repression that women experience in the play. I personally felt like the discussion of the differences between the interior and the exterior were extremely applicable to the ways in which women discuss the ways they can present themselves, what they can and can't do, and the ways they talk about and experience their own oppression. Throughout the play, the women either talk, or in some way demonstrate something, about sex and sexuality, their relationship to men as women, the expectations that they hold for each other and themselves (as well as society's role in establishing those expectations), and the way they are treated when those presentations deviate from the kind of women men or society want to see (ex. the issues surrounding hysteria and the discussion where they say every woman was sent to see a psychiatrist). I think that the worms here indicate the women's interiority and how that interiority has to be recognized and acknowledged by each of the women, because if they continue to repress their interior desires or aspirations in favor of presenting as a "proper" woman, they will be consumed and succumb to the psychological impacts associated with inhibited freedom or autonomy. This passage then might also speak to the idea of internalized misogyny, and how women must dismantle their own internalized misogyny before "it eats [them]" and causes great detriment to not only themselves, but the women they surround themselves with as well.