The lesson of the strory, I suppose, is that instead of making dozen excuses why you can not realize your dreams, think about this story, just hold to your dream and never give up.

我认为，这个故事告诉我们，与其找借口解释梦想为什么不能实现，不如想想这个故事，坚持你的梦想，永不放弃。

youdao

In the dream, you gradually go away, want to catch you, but how can not hold, until you slowly disappear.

在梦里，你渐渐远去，想抓住你，却怎么也抓不住，直到你慢慢消失。

youdao