Literature Reference: 悦兮，乐兮，心悦诚服。——《诗经·郑风·野有蔓草》 Joyful, delighted, heartfelt submission. Source from 'The Book of Songs: Zheng Feng: Wild Grass'.
兮: Classical Chinese particle.
悦: Joy and delight. Beneficial for physical and mental well-being, interpersonal relationships, and professional growth.
Meaning: Happiness and joy, expressing inner delight and contentment.