Of what value is the episode concerning the "Cave of Spleen" to the rest of the "Rape of the Lock"?

This episode in Canto IV opens an insight into the unconscious mind of Belinda, following the loss of her "lock". The episode gives a clear yet somewhat complicated view of the state of Belinda's unconscious. Pope thus presents the issues, which were later put forward by Freud, concerning the role and importance of the unconscious. Therefore, using a Freudian theoretical framework, one can explore the role Pope may have intended for this episode, or indeed …

…battle for Pope in taking the romantic mind against the age of reason. The satire of the society has continued from the original satire of epic style in Canto I, and into a general society battle which is in some places satirical. This particular event, thus does hold significance within the rest of the poem in creating a parallel world which embodies the thoughts of Pope and Belinda, using the images taken throughout the poem.