How does Flannery O'Connor use imagery in The Complete Stories of Flannery O'Connor?

Examples of Imagery:

"The geranium they would put in the window reminded him of the Grisby boy at home who had polio and had to be wheeled out every morning and left in the sun to blink." Page 3.

"Rayber felt as if he were fighting his way out of a net. They were over him with their red faces grinning. He heard the words drag out - 'Well, the way I see it, men elect ... ' He felt them pull out of his mouth like freight cars, jangling, backing up on each other, grating to a halt, sliding, clinching back, jarring, and then suddenly stopping as roughly as they had begun. Rayber was jarred it was over so soon. For a second - as if they were expecting him to go on - no one said anything." Page 24.