What reality did Li Shangyin's poems reflect in the late Tang Dynasty?

Li Yishan's Collected Works, also known as Fan Nan's Collected Works, mainly includes Li Shangyin's poems. Li Shangyin's poems reflect the extreme poverty of the people in the late Tang Dynasty, the overlapping contradictions within the regime, and the critical situation, especially the praise of the poet's own life experience, which shows the anguish and indignation of intellectuals.