Literature Reference: 故人天一涯，久客殊未回。—— 《鼓吹曲辞 临高台》 Old friends are scattered to the ends of the earth, and I, a long-time traveler, have yet to return. Source from 'Gu Chui Qu Ci Lin Gao Tai'.
久: Long-lasting, enduring. In names, it conveys the meaning of remaining true to one's original aspirations and persevering, making it an auspicious character for names.
客: Politician, knight-errant.
Meaning: A long-time traveler, yearning for home and old friends.