Literature Reference: 宇指广阔，思指思考。—— 《说文解字》 Yu refers to vastness, Si refers to thinking. Source from 'Shuowen Jiezi'.
宇:
Graceful and noble, the name embodies a broad mind and lofty ambitions.
思: Thought, intellect. In names, it often signifies quick thinking, sharp wit, and intelligence.
Meaning: Broad-mindedness and profound contemplation.