Answer:
Fleeing China and relocating in America.
Step-by-step explanation:
This is the idea that Chang describes in this excerpt of "Garden of My Childhood." In these lines, he describes how he experienced the transition and how it felt to leave his home country. He tells us that he left without looking back, and that he felt there was no possible return at all. He also tells us that now, finally, after a very long time, he is not running away anymore.