In "Let's Take the Long Way Home," Gail Caldwell reflects on the fleeting nature of life's precious moments, drawing inspiration from George Eliot's insight about how easily we overlook the beauty around us. The metaphor of time as a rushing stream highlights how often we fail to recognize the significance of experiences until they have passed, much like the sand slipping through our fingers. Caldwell's memoir emphasizes the importance of cherishing these moments with loved ones before they fade away.

Through her personal narrative, Caldwell illustrates the profound connections formed in friendship and how these relationships illuminate our lives. She resonates with Eliot's notion that we often only realize the impact of significant encounters and experiences retrospectively, underlining the value of being present. The memoir serves as a poignant reminder to appreciate the "angels" in our lives while we still have the chance, encouraging readers to embrace the beauty and transience of existence.