What is the meaning of light and shadow in soap bubble text?

The "confusion of light and shadow" in soap bubbles refers to the reflection of various colors by soap bubbles flying in the air. Soap Bubble is a newly selected text in the second volume of the third grade Chinese textbook published by People's Education Press, which comes from Bing Xin's prose Bing Xin.

Excerpts from the original text:

There are many kinds of games when I was a child, and blowing soap bubbles is my favorite.

When it rains, we can't go to the mountains and the seaside to play. Mother always teaches us to blow soap bubbles on the porch. She said that the rainy season is wet and soap bubbles are not easy to burst.

We put the leftover broken soap in a small wooden bowl and add water to stir it to melt it. Then soak the sleeve of the bamboo pen in thick soapy water and blow it slowly, blowing out a light ball the size of a tennis ball. Then mention it gently, and the light ball will fall from the tube and float gently in the air. If you fan it gently below, sometimes it can fly very high.

The article Soap Bubble tells the story of the author's favorite blowing soap bubbles when he was a child, the process of blowing soap bubbles in rainy season, and the beautiful appearance of soap bubbles. Soap bubbles are like beautiful dreams, expressing Bing Xin's longing for a better life when she was a child.