Literature Reference: Si means the thoughts of the heart; Yu means the light of the sun. Source from 'Shuowen Jiezi'.
思: Thought, intellect. In names, it often signifies quick thinking, sharp wit, and intelligence.
昱: Sunlight, radiance, and illumination. In names, it often conveys the meaning of warmth and a luminous, radiant presence.
Meaning: Deep contemplation and radiant light, symbolizing wisdom and brilliance.