After the incident with Winn-Dixie and the thunderstorm, Opal becomes overwhelmed with love for the preacher. She explains that she loved the Preacher for forgiving Winn-Dixie for being afraid but that most of all, for ‘putting his arm around Winn-Dixie…like he was already trying to keep him safe.” Why does she feel this? Why does the Preacher's action mean so much to Opal?