Literature Reference: 昱，日光也。——《说文》；柏，松柏也。——《说文》 'Yu' means sunlight, from 'Shuowen'; 'Bai' refers to the cypress tree, also from 'Shuowen'.
昱: Sunlight, radiance, and illumination. In names, it often conveys the meaning of warmth and a luminous, radiant presence.
柏: The cypress tree, bearing the surname Bai, often symbolizes uprightness and strength in names, fostering growth and development.
Meaning: Bright as sunlight and steadfast as the cypress tree.