While admitting that Darl's actions are correct in an abstract or theoretical manner, Cash is still confronted with another dilemma. That is, Cash knows that a barn is of inestimable value to a farmer; therefore, the destruction of a farmer's barn must be the act of a man who is insane. Cash can justify the intent of the act but not the actual act.
But Cash, who believes so strongly in the sense of property, cannot understand Darl's willingness to destroy someone's property. That Darl attempted to destroy Mr. Gillespie's property, he thinks, is cause enough to allow Darl to be put in the insane asylum.
The reference in Section 53 to Mrs. Bundren's house is confusing. Actually, Cash is narrating this section at a time when he knows that this lady will be Mrs. Bundren in a few hours.
Dewey Dell's attack on Darl shows the degree of antipathy she felt for him. Darl has taunted her for so long that Dewey Dell now releases all of her pent-up feelings against him. She does these things because Darl has taunted her for so long about her pregnancy and now she feels that she is getting her revenge and also removing her sense of torment, or at least her tormentor.
