Which ancient poem does China and South Korea imply?

This poem is "Fairy of Queqiao, Smart Cloud". Smart clouds are smart, flying stars spread hatred, and silver and China people stay away from darkness. On the seventh day of autumn dew and autumn, it is time to meet, mostly those who are together in the world, but the appearance of husband and wife. Common complaint against acacia, tender feelings like water, meet each other as if it were a dream, when it is hard to see the bridge. If the relationship between two people lasts for a long time, is it a matter of time? Cowherd and Weaver Girl meet on Tanabata, which spans the Tianhe River, so it refers to Valentine's Day in China, or Beggars' Day. This is the seventh day of the seventh lunar month in China.