Literature Reference: 梓，木也，禹，夏后氏之姓也。——《说文解字》 Zi refers to wood, and Yu is the surname of the Xia Dynasty. Source from 'Shuowen Jiezi'.
梓: The tree name, known as the Catalpa.
禹:
The name of an ancient figure, embodying deep blessings, prosperity, and good fortune.
Meaning: Zi symbolizes vitality and growth, while Yu represents the wisdom and achievements of Yu the Great, signifying talent and responsibility.