Who is the knocker? Asking questions is my belief. There are wonderful skills in the cloud, and we can know their nature by exploring their wonders. Can you help translate it into modern Chinese?

These words in Han Yu's "A Gift to My Nephew" mainly talk about the process of knowing Han Xiangzi.

The original text should be "whoever knocks at the door and asks questions is my sect." There are strange skills in the cloud, and you know their nature. "

Translate it

Who is the descendant of the knocker?

I didn't know it was my nephew until I asked.

He claimed to know strange Taoism,

You can know your own destiny (fortune telling)