Literature Reference: 'Heng' means enduring; 'Kai' means harmony. Source from 'Shuowen Jiezi'.
恒: Eternity, unwavering perseverance.
凯: Triumphant song, a victorious return. It metaphorically signifies exceptional ability leading to certain success.
Meaning: Perseverance leads to triumphant success, embodying steadfastness and achievement.