For example, in Li Yu's "Young Mermaid, Begonia Blooming in the East Wind" in the Tang and Five Dynasties:
The east wind blows Haitang, and the Champs are all over the building. Fragrance and red piled up, broken by beauty and branches, and fell into the golden hairpin.
The soft spring breeze blows away the begonia flowers, and the rich fragrance permeates the pavilions. Clusters of red flowers and clusters of incense, incense and red flowers overlap, broken by beauty, and flowers are inserted with golden hairpin together.
The "east wind" in the sentence: spring breeze. Ancient spring, summer, autumn and winter were matched with the east, south, west and north, and spring belonged to the east, so it was called the east wind. In other words, the spring breeze blows from east to west, hence the name.
Extended data:
In the minds of China people, the word "East" is always associated with the word "Spring". This is because of the monsoon climate in China.
China is a country with a remarkable monsoon climate. Monsoon is caused by the pressure difference between the ocean and the land. With the coming of spring and summer, the sun heats the mainland rapidly, and the air on the land becomes lighter and lighter and the air pressure becomes lower. Due to thermal inertia, the temperature of seawater is rising slowly. At this time, the air pressure in the ocean is higher than that in the mainland, so the air in the ocean flows to the mainland.
In autumn and winter, this process is just the opposite. The so-called monsoon refers to the large-scale airflow with obvious direction change between the ocean and the land in such a year.
To the east of China is the vast Pacific Ocean, and to the west is the interior of Asia. Therefore, the spring monsoon comes from the east or southeast, and the autumn monsoon comes from the west or southwest. Therefore, people in China call the spring breeze the east wind and the west wind the autumn wind.
Baidu Encyclopedia-Yu Meiren Dongfeng Blows Begonia.
China Social Science Network-Why are China people called "Spring Breeze" Dongfeng?