A poem describing poverty

After writing the poem, it was already dark, and a solitary lamp was reflected in the moonlight. Poetry becomes night, the empty cup is cold, and the moonlight is cold, which means that it is already dark after writing the poem, and a lonely lamp is reflected in the moonlight. I didn't believe it was difficult to write before, but now I know it is difficult to dream, which not only expresses the author's sadness, but also reveals the poverty of the poet's life and the passage of time.