Knowledge expansion:
This sentence comes from Thor's short song "Ye Wan Ji":
The thunder is weak and the sky is cloudy, but I hope the storm will come and I can leave you here.
There was a faint thunder and a cloudy sky. Even if it doesn't rain, I will stay here.
Ye Wan Collection is the earliest Japanese poetry collection, which is equivalent to China's The Book of Songs. From the 4th century to the middle of the 8th century, there have been different opinions on the length, date of completion and editors of poetry collections, but most of them are works of Nara period (AD 7 10 ~ 794). It is generally believed that The Collection of Ye Wan has been compiled and handed down by many people for many years. Who is its author? Tomo no Yakamochi (AD 7 17 ~ 785) was completed, and then it was revised and approved by several people before it became a modern version.
When The Collection of Ye Wan was written, Japanese did not have its own writing, and all the poems were recorded by borrowing Chinese characters, namely Ye Wan's pen name. His greatest contribution lies in getting rid of the stereotype of China's poetry and developing amorphous ancient songs into stereotyped, nationalized and personalized poetry forms by using Japanese national language, which set a good example for later poetry creation.
Ye Wan Collection is also a clear evidence of the friendly exchanges between China and Japan and the influence of Japanese literature on ancient Japanese literature. Based on the theme, form and classification method of China's poems, it compiled some China poems with Chinese characters as phonetic symbols, which directly reflected the poems of "sending envoys to the Tang Dynasty".