Who did Lin write April Day on Earth for?

This is a letter Lin wrote to her eldest son, Liang Congjie, expressing her incomparable love for her children and the hope and vitality she saw in her son.

The poem "You are a tree, a tree is blooming, and swallows are whispering in front of the beam-you are love, warmth, hope, and you are an April day on earth" is beautifully written. Reading April Day on Earth, it is easy to think that Lin and Xu are a couple with many beautiful stories. Judging from Lin's life, he is actually a very rational person.

Many years later, Lin said to his son, "At that time, Xu Zhimo didn't really love me. His imaginary forest was full of the poet's romantic feelings, but I was not the person he imagined." In fact, her feelings for Xu are very clear, just a dark cloud projected on Zhang Hai's mind.

Mr. Liang said: After my mother died, my father asked me, "Do you know who this poem is for?" I said I don't know. Father said, "This poem was written to you by your mother". I said, really? ! Father said, "When you were born, your mother wrote this poem with joy."