What kind of thoughts and feelings does Bei's poems express?

"Northern Qing Luo" is a five-character poem by the poet Li Shangyin, and it is the 54th1vol.1poem of The Whole Tang Poetry. In the first part, the poet wrote a visit to monks and pointed out the time of the visit. The poet hopes to get inspiration from spiritual communication with monks to relieve his distress. Poets who write couplets look for the distance and scenery they see, write down the scenery and record their whereabouts, with rich meanings. Poets in the Necklace only found monks at dusk, and described their simple and quiet life with refined pen and ink. At the end of the couplet, I expressed my feelings and suddenly realized the meaning of Zen. In the future, I will no longer entangle love and hate, and face the honor and disgrace of my official career indifferently. This poem is concise in language, rich in connotation and distinct in layers. In the poem, the poet visited the lonely monk, and the word "lonely" was stained with such points as "knocking alone", "one branch" and "where is the person", which showed the poet's negative emotions of being dissatisfied with reality and hoping to get rid of Buddhist thought when he was depressed and hesitant.