Book Reports / O'connor, "Good Country People" - fixing my Thesis statement [6]

Short Story by Flannery O'connor, "Good Country People".

Instructions: use the following short fiction element and theme sentence as part of your thesis statement structure.
Additional Details
Forgot to add to instructions:
"I am giving you the theme I want you to use as the theme sentence in your thesis statement. I am also giving you the short fiction element I want you to use as the main focus of your thesis. USE THE THEM WORDING EXACTLY AS I HAVE WRITTEN IT. The them should be the last part of your thesis statement structure

Short fiction element: Imagery and symbolism

Theme: When confronted with true Nothingness, people who have a mechanical way of dealing with the world, often realize their lack of self.

MY TRY: Hulga's farce of strength and arrogance is peeled away when her leg, the symbol of her strength, is stolen revealing her true weakness, helplessness. When confronted with true nothingness, people who have a mechanical way of dealing with the world, often realize their lack of self.

Is this acceptable? Her instructions say exactly but it makes no sense.