What is the date when the mountains and seas are returned?

"Mountains and seas have their own return dates, and the wind and rain meet each other" comes from a famous online sentence, which is adapted from the poem "Notes on a Rainy Night to Friends in the North" by Li Shangyin, a poet in the late Tang Dynasty. Poetry means that, like stones and water, there will be a time to return to a place and become mountains and seas, and like wind and rain, there will always be a day to meet.

The moral is: although life is impermanent and there are many changes between people, don't worry, mountains and rivers will meet and will definitely meet somewhere. It means that there is no banquet that never ends between people, but they will meet again one day. The world is big and small.

Appreciation of Short Messages to Friends in the North on a Rainy Night

Notes for Friends in the North on a Rainy Night is a lyric quatrain written by Li Shangyin, a poet in the late Tang Dynasty, to his wife (or friend) in Chang 'an and a foreign land in Bashu. It is the poet's reply to each other. The first two sentences of this poem, with questions and answers and descriptions of the surrounding environment, express the lonely feelings and deep thoughts of his wife Wang. The last two sentences imagine the joy of meeting again in the future and compare with the loneliness tonight.

This poem is improvised, showing the twists and turns of the poet's feelings in an instant. The language is concise, and there is no trace of modification in the wording and sentence making.