Firstly, it uses the symbolism of the sun and the moon to represent two individuals in a relationship. The sun typically represents warmth, light, and vitality, while the moon symbolizes reflection and a gentle, calming presence.
Secondly, it conveys the idea of mutual support and reciprocity in a relationship. Just as the sun shares its light during the day, one partner is encouraged to let their love and positivity shine through. And when night falls, symbolizing challenging or darker times, the other partner steps in with their support and care, much like the moon reflecting the sun's light.
In essence, this statement celebrates the concept of partners complementing each other's strengths and providing support in times of need. It embodies the idea of a harmonious and balanced relationship where both individuals contribute to each other's well-being and happiness.