Throughout the play Bridie has a defined perception of the world. She appears perceptive about British inadequacies during the Japanese invasion as highlighted when she states Ill forgive the Japs for what they did to us in camp and further states her views on sleeping with a Japanese To go with a Jap to give him pleasure- how could you ever live with yourself. Ultimately, it is when Sheila tells her about the self- sacrifice she made for her that Bridies role and perception is dramatically altered.
Ultimately, she evolves into an understanding individual, which is evident when she is talking about Sheilas actions They dont give medals for things like that, but they should. Hence, the truth serves as a catalyst for the shift in dynamic of their relationship. Throughout the play she remains having a motherly role towards Shiela, as evident when Shiela states We fought all the time. You were worse than my mother and when Bridie calls Shiela My dear girl. Therefore, the character of Bridie shifts in her role and perception throughout the play the Shoe Horn Sonata as a result of the truth being conveyed.