Literature Reference: 柔条乍反植，劲节常对生。—— 《植灵寿木》 Tender shoots unexpectedly take root, while firm joints often grow in pairs. Source from 'Planting the Spirit of Longevity Tree'.
劲:
Strength and power. Omnipresent, the characters subtly harbor the ideal of great success and fortune.
节: Joints, paragraphs, etiquette. Cultivated, gentle demeanor, courteous.
Meaning: Firm joints symbolize an unyielding character and a resilient spirit.