What is an example of symbolism in the novel, The Women in Black?

Lisette, the gown Lisa falls in love with at Goode's, symbolizes self-expression. When Lisa first encounters the dress, she is not only enamored by its elegance, but feels connected to it in the way she connects with pieces of poetry. She even believes Lisette was made exclusively for her. By the end of the novel, the gown is discounted so much Lisa can afford it. The dress is a symbol of Lisa's newfound adult identity.