Literature Reference: Zi is a type of wood, and Song is also a type of wood. Source from 'Shuowen Jiezi'.
梓: The tree name, known as the Catalpa.
松: Pine trees, symbolizing a life of carefree ease and tranquility, also embody the virtues of towering strength, honesty, and reliability when used in names.
Meaning: Zi Song symbolizes resilience and steadfastness, like the towering pine and the sturdy catalpa.