What kind of thoughts and feelings does Bing Xin's Paper Boat express?

Expressed the poet's sad thoughts about his mother.

"Paper Boat" has a novel idea, and uses the way of supporting objects to express feelings, saying that he refused to abandon a piece of paper at sea, kept it and folded it into a paper boat and threw it into the sea. The whereabouts of the paper boat are unknown, but the poet still folds it every day and never gives up.

Although she knew that the paper boat could not flow to her mother's side, she prayed that the paper boat folded by tears could carry her love and sadness caused by being far away from her mother and enter her dream. Deep feelings and strange imagination make this poem both vivid and concrete, and implicit and deep. Whether you have the same experience or not, this sincere and sad yearning is equally disappointing.

Extended data:

Paper Boat-Send Mother, Bing Xin

I never refuse to throw away a piece of paper, but keep it-keep it, fold it into a boat and throw it into the sea. Some were blown into the window of the ship by the wind, and some were wet by the waves and stuck to the bow. I still keep folding them up every day, hoping that one of them can only flow where I want it to go. Mom, if you see a white boat in your dream, don't be surprised that it dreams for no reason. This is your beloved daughter with tears in her eyes. Wanshui Qian Shan, please bring her love and sorrow home.

1August 27, 923