Themes are the fundamental and often universal ideas explored in a literary work.
Jody stifles Janie’s speech, as when he prevents her from talking after he is named mayor; her hatred of him stems from this suppression of her individuality. Tea Cake, on the other hand, engages her speech, conversing with her and putting himself on equal terms with her; her love for him stems from his respect for her individuality. After Janie discovers her ability to define herself by her speech interactions with others, she learns that silence too can be a source of empowerment; having found her voice, she learns to control it. Similarly, the narrator is silent in conspicuous places, neither revealing why Janie isn’t upset with Tea Cake’s beating nor disclosing her words at the trial. In terms of both the form of the novel and its thematic content, Hurston places great emphasis on the control of language as the source of identity and empowerment.
Whereas Janie struggles to assert a place for herself by undertaking a spiritual journey toward love and self-awareness, Jody attempts to achieve fulfillment through the exertion of power. He tries to purchase and control everyone and everything around him; he exercises his authority hoping to subordinate his environment to his will. He labors under the illusion that he can control the world around him and that, by doing so, he will achieve some sense of profound fulfillment. Others exhibit a similar attitude toward power and control; even Tea Cake, for example, is filled with hubris as the hurricane whips up, certain that he can survive the storm through his mastery of the muck.
For both Jody and Tea Cake, the natural world reveals the limits of human power. In Jody’s case, as disease sets in, he begins to lose the illusion that he can control his world; the loss of authority over Janie as she talks back to him furthers this disillusionment. In Tea Cake’s case, he is forced to flee the hurricane and struggles to survive the ensuing floods. This limit to the scope of one’s power proves the central problem with Jody’s power-oriented approach toward achieving fulfillment: ultimately, Jody can neither stop his deterioration nor silence Janie’s strong will.
Although relationships are implied to be necessary to a fulfilling life, Janie’s quest for spiritual fulfillment is fundamentally a self-centered one. She is alone at the end yet seems content. She liberates herself from her unpleasant and unfulfilling relationships with Logan and Jody, who hinder her personal journey. Through her relationship with Tea Cake, Janie experiences true fulfillment and enlightenment and becomes secure in her independence. She feels a deep connection to the world around her and even feels that the spirit of Tea Cake is with her. Thus, even though she is alone, she doesn’t feel alone.
The title of the book, taken from when the characters huddle against the hurricane and hope to survive, serves as another reminder of this theme: humanity against the supernatural. As Janie and Tea Cake sit in metaphorical company with the people in surrounding shanties, they are all united in their supplication toward God. Through this shared petition to the divine, the novel suggests that a sort of horrific communion occurs when humanity is pitted against threatening forces of destruction. Specifically, Janie and Tea Cake draw closer in this communion, surviving the hurricane to “stand on the edge of things,” hand-in-hand.