The author employs the metaphor of light, rain, and the rainbow to explore the complexities of emotional experiences and relationships. Light symbolizes hope, joy, and positivity, while rain represents sadness, struggle, and turmoil. The rainbow, a beautiful phenomenon that emerges after a storm, signifies resilience, healing, and the promise of brighter days ahead. By contrasting the Sun and the Moon with the rainbow, the author suggests that their relationship transcends traditional romantic archetypes; instead, it embodies a unique blend of support and transformation. The rainbow serves as a reminder that even in the darkest moments, beauty and hope can emerge, highlighting the importance of emotional support during challenging times. This metaphor encapsulates the idea that love can be a source of strength, illuminating the path through life's storms.