Literature Reference: 未有此气，已有此理。气以成形，而理亦赋焉。故曰：『宇涵万理，而理在气先。—— 《朱子语类》 Before the existence of this energy, its principles were already present. Energy shapes forms, and principles are endowed within them. Hence it is said: 'The universe encompasses all principles, and principles precede energy.' Source from 'Zhuzi Yulei'.
宇:
Graceful and noble, the name embodies a broad mind and lofty ambitions.
涵: Tolerance encompasses all, exuding an extraordinary aura of grace.
Meaning: Yu Han signifies the profound principles contained within the vast universe, symbolizing a broad mind and wisdom.