Literature Reference: 力拔山兮气盖世，时不利兮骓不逝。骓不逝兮可奈何，虞兮虞兮奈若何！—— 《垓下歌》 With strength to move mountains and spirit to overshadow the world, yet the times are unfavorable, and my steed does not gallop. What can I do? Oh Yu, oh Yu, what shall I do with you! Source from 'Gaixia Ge'.
虞: Anticipation and Omen.
兮: Classical Chinese particle.
Meaning: Yu Xi conveys deep affection and helplessness, often used to express attachment and reluctance towards a loved one or something cherished.