What are the ancient poems with the theme of "longing"?

Missing you is like a long river, and I always hear the sound of whimpering.

Li Qingzhao (Song Dynasty) - "A cut plum blossom, the fragrance of red lotus root and the remaining jade mat in autumn"

The flowers drift by themselves and the water flows by itself. One kind of lovesickness, two places of idle sorrow.

Li Zhiyi (Song Dynasty) - "Bu Shuzi·I Live at the Head of the Yangtze River"

I miss you every day and don't see you, I drink the water of the Yangtze River every day.

Liu Yuxi (Tang Dynasty) - "One of Two Poems on Bamboo Branches"

The willows are green and the Qingjiang River is level, and I hear the singing of people stepping on the Langjiang River.

Meng Haoran (Tang Dynasty) - "Early Cold on the River / Early Cold / Longing for Return on the River"

My home is in Xiangshuiqu, far away from Chuyun.

Yan Shu (Song Dynasty) - "Butterflies in Love with Flowers, Chrysanthemums on the Threshold, Sorrows on Smoked Orchids and Weeping Dew"

I want to send colorful notes and rulers. The mountains are long and the rivers are vast.

Xin Qiji (Song Dynasty) - "Partridge Sky: The Jackdaws Are Sad in the Evening"

Knowing that love has been blocked by the mountains, I often lean against the railings and cannot feel free.

Ouyang Xiu (Song Dynasty) - "Yulou Chun·I don’t know whether you are far or near after farewell"

As we travel further and further away, there are no books at all. I wonder where the fish will sink in the vast water.

Li Qingzhao (Song Dynasty) - "Reminiscences of Playing the Flute on the Phoenix Platform·Fragrant Cold Golden Elephant"

Only the flowing water in front of the building should miss me and stare at me all day long.

Yan Jidao (Song Dynasty) - "Longing Lovesickness·Longing Lovesickness"

Who do you want to say lovesickness resembles? Lovers don't know.

Li Zhiyi (Song Dynasty) - "Bu Shuzi·I Live at the Head of the Yangtze River"

I only hope that your heart will be like mine, and you will live up to your love.