That poem describes events following the writing of a poem which states "She watches alone from her chamber /
One brief poem by this man notes "My name shall not be known from my writing / sick, growing old, I must yield up my post", and another concludes with the line "I have no strength to right the universe".  This poet asks "Oh, when shall the blazing skies of summer pass / That his will may exult in the meeting of wind and rain" in a poem which states "Thus were they hewn, rooted in nothingness / Their inverted reflections hung in shaking waters".  In addition to Writing of My Feelings Traveling by Night, Spending the Night in a Tower by the River, and Thousand League Pool, he wrote a poem which states "Our neighbors are filling the wall / so deeply moved they're sobbing too" upon his return to the titular location.  That poem describes events following the writing of a poem which states "She watches alone from her chamber / While faraway I think lovingly on daughters and sons".  That poem asks "When shall we lean in the empty window" as the light is "drying traces of tears".  FTP, name this poet of Chiang Village and Moonlit Night.
One brief poem by this man notes "My name shall not be known from my writing / sick, growing old, I must yield up my post", and another concludes with the line "I have no strength to right the universe".  
Du Fu or Tu Fu