If Xu Xi never meets anyone in her life that she can run to, she will just walk at her own pace.
But the Jiang Canfeng who took her to see the stars was an identity that she wanted to mention to others but couldn't.
If the moon is out of reach, then I am lucky enough to be illuminated by the stars.
Purpose: If you can meet someone worthy of running for you in your limited life, then you will be lucky