Are you asking where the tearful smiles in "Childhood is a dream" and "Real dreams are memories" come from? Childhood is a dream, and a real dream is a tearful smile when recalling. This poem comes from "Stars" and was written between the winter solstice of 1919 and 1921.

The memory of childhood is beautiful but sad, so it is true in dreams; because it really existed, it is true in dreams, and it is also a tearful smile when recalling. This sentence expresses Bing Xin's yearning and nostalgia for childhood.

"Stars" is Bing Xin's first collection of poems. The collection includes 164 short poems written by the poet from the winter solstice of 1919 to the autumn of 1921. They were first published in Beijing's "Morning News". Bing Xin (October 5, 1900 - February 28, 1999), formerly known as Xie Wanying, was a native of Changle, Fujian, and a member of the China Association for the Promotion of Democracy (China Association for the Promotion of Democracy). Chinese poet, modern writer, translator, children's literature writer, social activist, essayist. The pen name Bing Xin comes from "a piece of ice heart in a jade pot".