Like the other replies, I also didn't understand it, so I asked Gemini. Forgive my use of AI, but I can't seem to summarize it any better.

> Permission is a Trap: The gatekeeper never uses physical force. The man fails because he accepts the psychological deterrence. He waits for external approval instead of acting.

> Systems are Designed to Stall: Bureaucracy exists to keep individuals waiting. Complying with arbitrary rules and being infinitely patient yields absolutely zero results.

> Your Path is Individual: The gate was made only for this specific man. By deferring to authority, he surrendered an opportunity tailored entirely to him.

> Action Over Compliance: The story is a warning against passive obedience. The system will gladly let you sit outside and rot if you never force the issue.

I don't understand #3, but the rest, especially #4 really ring true.

Here is a longer article on it:

https://courses.cit.cornell.edu/hd11/BeforeTheLaw.html