What were the ancient phrases to express longing?

The following are some ancient phrases that express longing: One day apart felt like three years. "The Book of Songs·Wang Feng·Picking Wei" I miss you, but I don't know when I'll see you again. I'm embarrassed this night. Li Bai's "Moored at Night on Niu Zhu Recalling the Past" 3. When I look back at the place where the lights are waning, who will miss me? Xin Qiji's Sapphire Case, Yuan Xi 4. The mountains are long and the water is far away. Where is the lovesickness? The lovesickness is at the Bright Moon Pavilion. Li Yu's " Langtaosha·Beidai River " 5. Flowers bloom and fade, but eventually they are just passers-by. The flowing water and the falling flowers have no choice but to face the east. Li Yu's " Langtaosha·Donglan Sand " 6. Long longing, looks, short longing, endless. Li Bai's Three, Five, and Seven Characters The sky is empty and the weather is late after the rain. The autumn moon shines on the deep ditch and the shadow enters the cool autumn. Zhang Ruoxu's " Moonlit Night on the Spring River " 8. Red beans grow in the southern part of the country, and spring comes. I hope you can pick more of them and miss them the most. Wang Wei's "Lovesickness" 9 Shuidiao Getou: When will the bright moon have wine to ask the blue sky? Su Shi's "Water Melody" 10 people return to the wild geese and miss the flowers. Li Qingzhao's Dream Like Order