What is the significance of the ugly duckling's Egyptian immigration in the story?

Adversity often constitutes a kind of psychological pressure, which stimulates the spiritual strength to rush out of adversity, gives full play to all human abilities, and makes people step into a perfect realm. From this perspective, adversity is not only a negative force to suppress talents, but also a positive factor to promote people's progress, just like an airplane can only take off against the wind. As long as you make unremitting efforts and keep making progress, you can realize your dreams even in adversity.