Literature Reference: Kun and Yao are beautiful jade. Source from 'Shuowen Jiezi'.
琨: A precious jade, often symbolizing rarity, gentleness, and refinement in names.
瑶: In names, it often symbolizes beauty, preciousness, brightness, and purity, conducive to prosperous fortune and a splendid life.
Meaning: Kun and Yao symbolize beautiful jade, representing nobility, purity, and preciousness.