How do the examples of allegories provided by the author contribute to the central idea of the text? This is a commonlit question I was confused about and the text is called THE BLINDING SUN: AN INTRODUCTION TO ALLEGORY. Can someone help?

Read the passage. when mother’s fever persisted for a week, father summoned our family doctor. dr. blakemore applied leeches to mother’s skin in hopes of reducing the amount of blood in her body. despite the doctor’s efforts, she languished in bed for three more days before her appetite returned and she requested a thin broth. our dear cook, mrs. davis, prepared the broth and delivered it to my mother directly, eager to ease her discomfort. what can readers infer about the time period of the passage?