When a beautiful rainbow appears in the sky at dawn or dusk, who, upon seeing it, does not float fearlessly in joy?

This beautiful couplet talks about the wonder of a rainbow. It describes how, either in the morning or evening, a lovely rainbow graces the sky. The poet asks, 'Who wouldn't feel joy and a sense of fearlessness upon seeing it?' This means that gazing at the vibrant colors of a rainbow fills everyone's heart with immense happiness and a feeling of peace, washing away all worries. It's a reminder of nature's simple yet profound beauty and the pure delight it can bring to our souls.