What does it mean to be ambitious, but you can't understand yourself unless you are lucky?

"People have ambition, but they can't be self-sufficient without transportation." Even if a person has the ambition of lingyun, he can't achieve it without a chance.

This sentence comes from "Broken Kiln Fu/Cold Kiln Fu/Persuasion" written by Lv Mengzheng, Prime Minister and Prince in the early years of Northern Song Dynasty.

The full text of this article reveals the idea of life fate and the natural change cycle of heaven and earth. Based on my own experience from suffering to wealth, this paper lists all kinds of fates and hardships experienced by many famous people in history from ancient times to the present, and explains the ups and downs of life destiny in this world in a factual and reasonable way.

There are two versions of "Broken Kiln Fu/Cold Kiln Fu/Persuading the World" that have been handed down to this day. "People have ambition, but if they don't transport, they can't be self-evident." This sentence is the first paragraph of the first edition, and the whole paragraph is as follows:

Accidents will happen. Scolopes has a hundred feet and can't walk like a snake; The rooster has two wings, but he can't fly over the crow. A horse has a journey of a thousand miles, and it can't be done without riding it; People are ambitious, but they can't be self-sufficient unless they are lucky.

The explanation of this passage is: the weather is uncertain and unpredictable; People will also face all kinds of problems in their lives, and it is difficult to predict what disasters will happen. Scolopes have many feet, but they don't crawl as fast as snakes without feet. Domestic chickens also have two wings, but they can't fly as high as crows. A good horse can gallop thousands of miles, but it can't go back and forth without a rider. Everyone has great ambitions, but you can't get ahead without opportunities.