In John Dos Passos' work "Rosinante to the Road Again," the phrase suggests a balance between the author's personal life and his literary endeavors. The metaphor of sweet bread likely refers to his pleasant experiences and the fulfillment he finds in life, contrasting with the darker themes he explores through his novels. This duality highlights how an author can maintain joy in their everyday life while delving into complex, even harsh, narratives in their stories.

Dos Passos implies that there is a freedom in creativity that allows writers to express deeper and sometimes darker truths. As he enjoys the sweetness of life, he is unencumbered to write about difficult subjects, leaving room for emotional expression and critique. This underscores the notion that the experiences and feelings of an author can coexist, enriching their storytelling and allowing for authentic exploration of human experiences.