旭: The rising sun, radiant and luminous. In personal names, it often symbolizes a sunny and open disposition, exuding confidence and decisiveness. The phrase "the sun rising in the east" also carries the profound meaning of being filled with hope and promise.

灿: The original meaning is brilliance, radiance, vividness, and dazzling splendor. When used in personal names, it conveys the connotations of being open and upright, with a bright and promising future.