Literature Reference: Ya means correctness, while Chang signifies long daylight. Source from 'Shuowen Jiezi'.
雅: Grace and refinement. It conveys a sense of cultivation and beauty.
昶: The days are long and serene, evoking a sense of comfort and smooth sailing. In names, it often signifies ease and favorable winds in one's journey.
Meaning: Elegant and upright, with enduring brightness.