Where does the poem "Two lines are harvested in three years, one chant brings tears" come from?

The poem "Two sentences are obtained in three years, and one recitation brings tears to my eyes" comes from "After the Poetry" written by Jia Dao in the Tang Dynasty. His poems are skilled in carving, and he likes to write about desolate and lonely places, which are very desolate. With a bitter taste, he said that "two sentences are obtained in three years, and one chant brings tears".

Jia Dao strives for perfection in his poems, and he also takes great pains in layout and planning. This poem is a true portrayal of his spiritual outlook that regards art as life, devotes himself wholeheartedly to it, and persistently pursues the perfect state. The author strives for excellence in every word and sentence of his poems and repeatedly scrutinizes them. This poem is a true reflection of his spiritual state of regarding art as life and pursuing perfection.

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Appreciation of works:

It took three years of hard work to recite these two poems, which made me shed tears after reciting them. Those who know my music should know the pain of my poetry and the rarity of good verses. If people who understand my poetry don't appreciate it, I will disappear into my hometown and spend my remaining years without writing poetry again.

It shows the hardship and hard work of the poet's artistic work, and also shows that good poems and lines are hard to come by. Jia Dao's spirit of reciting has a great influence on later generations. For example, Fang Qian said: "Only when he recited a five-character sentence, he got a few white mustaches." "Broken stems and whiskers" are all derived from Jia Dao's poems.