How does Spring Rain express the author's thoughts and feelings?

This is a love poem. The spring rain is continuous, and the feelings are lingering. Looking at the red chamber where the other party lived in the spring rain, I miss the Iraqi people like rain. And triggered a lot of nostalgic emotions, such as remembering, dreaming, loving, picturesque and extremely painful. Finally, even the love letter can't be sent out, which shows that this kind of missing is helpless and endless. With the help of the falling spring rain, this poem expresses the feelings of missing distant lovers. At the beginning, point out the season first, then write about the sadness of seeing the old place again, then write about looking at the building through the rain curtain, looking for lost confusion, and finally only each other's thoughts and dreams are left. Step by step, nostalgia is like endless rain. The artistic conception, emotion, tone and atmosphere of the poem are very clear, beautiful and moving. The words "the red chamber is sheltered from the rain" and "the pearl foil floats with the light" are simply a brightly colored picture.