First of all, understanding the background of this poem and the author's life can help us better understand the meaning of this poem. For example, Su Shi's "Twenty Dreams in the First Month of the River" is written to his wife, and the poem expresses his thoughts about his wife, from which readers can feel the author's feelings.
Secondly, the artistic conception of poetry is also an important aspect of understanding ancient poetry. Ancient poetry is often full of artistic conception, which requires us to understand the meaning through imagination. For example, the poem "The stars hang down from the wilderness and the moon comes from the river" in Li Bai's "Sleeping at Niuzhu Mountain at Night" expresses the author's homesickness for his hometown by describing the scenery at night.
Finally, the language expression of ancient poetry also needs our careful taste. Ancient poems often use metaphors, personification and other rhetorical devices to express emotions and meanings through rhetorical devices. For example, Du Fu's poem Up the Mountain expresses the author's great ambition and longing for the future through metaphor.
In short, understanding ancient poetry requires us to start from many aspects, including understanding the background of the poem and the author's life, the artistic conception of the poem, language expression and so on. Only through careful taste and imagination can we really understand the meaning and emotion.