Dill was crying in To Kill a Mockingbird because he felt a deep sense of sadness and rejection after witnessing the Tom Robinson trial. As a child, Dill is sensitive and struggles with understanding the harsh realities of the adult world. During the trial, he was exposed to the prejudice and injustice present in Maycomb, which overwhelmed him emotionally. Dill’s tears reflect his confusion and empathy towards Tom Robinson’s plight, highlighting how innocent children can be profoundly affected by the wrongdoings of the adult society they inhabit.
Moreover, his feelings of alienation were exacerbated by his complex family dynamics and feeling of not belonging. Throughout the story, Dill craves acceptance and love, which he sometimes fails to find from his own family. This culminates in an emotional outburst during the trial, showcasing his innocence and the impact of such experiences on young minds.