The circus troupe symbolizes love and care for the girl, contrasting with the disdain shown by other characters.
The decision between staying with the circus or pursuing education represents the conflict between tradition and a better future.
The performers in the circus are associated with innocence, goodness, and a childlike imagination.
The circus owner, Mr. Sleary, represents the paradox of familial love and defends the father's decision to leave the girl for her own good.
Mr. Gradgrind, who initially disapproves, later offers the girl a place in his home and school, showing the importance of education.