Why did my parents name me Cao Zixuan?

Because parents want you to grow up healthily and be as strong as catalpa bungeana.

I also hope that you, a sunny boy, will not forget to plan your hometown when you grow up, be grateful and kind, and bring warmth to the world.

In a word, Zixuan is a sunny boy with good health and kind heart. So your parents named you Cao Zixuan.