蕊: The pistil, the central part of a flower, plays a pivotal role and holds the leading position in its structure.
吟: Moaning and sighing, leaning against a tree, he chanted. — "Zhuangzi: The Fullness of Virtue"
Meaning: Rui, meaning flower stamen, symbolizes softness and vitality; Yin, meaning chanting, represents elegance and talent.