Because it fully interprets a mother.

The film uses the form of voice-over. There is no music in the realistic part, but a lot of music is used in the memory part. When the music sounds, the father comes to the village in a carriage, and the most beautiful mother in the village I saw my father for the first time and fell in love with him at first sight. This piece of music was melodious, sweet and calm, implying that the relationship between the two had already sprouted, and also brought out the mother's shyness and ignorance.

When the music sounds, the picture is of the mother delivering meals to the construction site and the father eating them every day. The music is open and soft. The soft music and the mother's expectant eyes show the mother's care and admiration for the father. The music sounds. At that time, the picture was that the school had been built, and the mother was looking at the school in a daze amidst the sound of reading. The music was light and light, and combined with the picture of the mother in a daze, it created a reserved and restrained look.

As the music played, the father and mother finally met. The mother smiled slightly, and the father nodded slightly. The music crescendoed, melodious and graceful, suggesting that their love was budding.

The variation "Food Delivery" of the theme song "My Father and Mother" played by the bamboo flute sounded, matching the mother's concerned eyes as she turned her head, showing the mother's expectation for her father to eat the dumplings made by herself. , but also shows the mother's pure and selfless love. Immediately afterwards, when the father gave the first lesson to the children in the village and the mother ran to listen, the same melody was replaced by panpipes, piano, and violin.

Add the tinkling sound of the piano to the calmer and metaphorical sounds of the pan flute and violin, as if the sound of the father's reading touched the heartstrings of the mother's budding love. Added to the son's narration: "When I was a child, I heard my mother say that my father's voice was very nice when he was studying. My mother was illiterate and couldn't understand some of the texts, but she felt that my father's voice was the most beautiful voice in the world.

From that day on, my mother listened to it every day. Later, people in the village got used to it and no one stopped listening, but my mother still listened to it. She has been listening to it for more than 40 years. It became a part of her life.