司: Preside; Operate. In names, it often signifies exceptional talent, strong leadership, and the ability to unite others.
瀚: Vast and expansive, it often signifies erudition, profound knowledge, and a broad-minded spirit in names. It aids in learning and fostering friendships.
Meaning: Si signifies governance and leadership, while Han represents vastness and expansiveness, symbolizing a broad mind, exceptional talent, and the ability to shoulder great responsibilities.