This poem, from Four Poems on the Fortress in the Tang Dynasty, expresses the yearning for peace. "and heaven remains our neighbourhood" in the poem means a peaceful place far away from war, while "no war" emphasizes the importance of peace. "Selling as the sun and the moon" means turning soldiers in war into the sun and the moon, which means that the light of peace can illuminate the whole world. This poem expresses the beautiful yearning for peace, condemnation and reflection on war.