What ancient poems mean "companionship"?

First, [Song] Li Qingzhao's "Like a dream, who sits alone in the bright window": whoever sits alone in the bright window, I have two shadows.

Who sits alone in the bright window, me and my shadow

Second, [Tang] Du Fu's "The two sides of the Yellow River were recovered by the imperial army: singing loudly and drinking deeply, starting my home on that green spring day.

During the day, I will drink and sing to my heart's content, and the bright spring will accompany me so that I can set off for my hometown.

Third, [Tang] Si Kongtu's "Twenty-four Poems": Jin Zun is full of wine, accompanying guests to play the piano, self-sufficient, good and beautiful.

When the wine is full, play the piano with the guests. Self-sufficiency, such inexhaustible material, can freely express their ideas.

Fourth, [Song] Yan's "Partridge Sky, Keeping Escort": Keeping Escort, about opening a boat.

When the lotus is in full bloom, we will go sightseeing together and canoe while pingpong.

Five [Tang] Bai Juyi's "Yang Liuzhi": Erliu Xiaolou, with drunkards for many years.

Among the two small willow buildings, the drunkard who has been soft for many years.