If I wanted to scare you, I would tell you what I dreamt about a few weeks ago.
如果我是想吓你,我就会告诉你我几周前梦到的事。
I dreamt about you.
我梦到你了。
In my dream I dreamt that I was dreaming.
在我的夢中,我夢到自己在做夢。
Once, Zhuangzi dreamed he was a butterfly, but when he woke up, he wasn't sure whether he was Zhuangzi who had dreamt being a butterfly or if he was a butterfly now dreaming he was Zhuangzi.