Literature Reference: 柯，斧柄也。——《说文》；宇，四方上下曰宇。——《淮南子·原道训》 Ke refers to the handle of an axe. Source from 'Shuowen Jiezi'; Yu refers to the universe, encompassing all directions. Source from 'Huainanzi·Yuandao Xun'.
柯: The handle of an axe. By extension, it signifies a rule or principle.
宇:
Graceful and noble, the name embodies a broad mind and lofty ambitions.
Meaning: Ke symbolizes strength and resilience, while Yu represents vastness and inclusiveness, signifying a broad mind and unyielding spirit.