The literal meaning is clear: speaking with kindness and thoughtful words, rather than shouting, is more effective for positive outcomes. Just as rain gently nourishes the earth, allowing seeds to sprout and flowers to bloom, so too do considerate words foster understanding and growth in relationships and within oneself. Thunder, while loud and attention-grabbing, is a transient event that can even be destructive, much like angry or aggressive communication.

In Sufism, this echoes the concept of *adab*, which signifies good manners, ethical conduct, and refined spiritual discipline. Rumi, a central figure in the Mevlevi Order, emphasized the transformative power of love and compassion, seeing them as the divine attributes that draw beings closer to the Divine. The 'voice' can be seen as the ego's clamor, the 'thunder' of self-importance or anger, which obscures the subtle whispers of the heart and the divine *zikr* (remembrance). The 'words' that 'grow flowers' are those infused with *ihsan* (excellence and sincerity), reflecting the inner state of spiritual awareness and connection. The goal is not to suppress expression but to purify its source, allowing wisdom and love to flow through your communication, mirroring the divine grace that sustains creation.

In your life: Practice responding to challenges with calm, reasoned words, even when you feel provoked. Seek to understand before seeking to be understood, letting empathy guide your speech.