Literature Reference: Qing, the stone of music. Source from 'Shuowen Jiezi'.
磬: Emptiness, fulfillment.
悦: Joy and delight. Beneficial for physical and mental well-being, interpersonal relationships, and professional growth.
Meaning: Qing, an ancient musical instrument, and Yue, meaning joy, symbolize harmonious and delightful sounds that bring happiness and beauty.