Poets sometimes use flying swallows to convey love and express lovesickness. For example, Lin Daiyu's funeral poem wrote, "In March, the fragrant nest has been built, and the swallows in the beams are too ruthless."

1. Breaking the Array in the Song Dynasty: Yan Shu

When the swallows want to return, The tall building had a westerly wind last night. Asking for a small meeting in the human world, try to put the golden statue next to the chrysanthemum bush. Song Chang's face is pink. The setting sun breaks through the curtains, and a slight coolness gradually creeps into the sycamore trees. There are so many endless love words, written to the tune of wild notes. This feeling is very important. Appreciation: Love is a lamp, and longing is the oil in it. One day, when a person stands in the corridor of the past and watches, even the red beans like fire cannot light up the broken lines of emotional pain. Love is broken, love is gone, heart is broken, hands are cold.

2. Swallows come to the boat to make a fortune Tang Dynasty: Du Fu

Hunan is a guest traveling through the spring, and the swallows carry mud twice in their mouths. I used to go to my hometown and get to know the Lord, but now I am seeing people from afar. It's so pitiful to live in a nesting room everywhere, how strange it is to support this body. For a moment, the ship's rafters are still up, and the flowers and water are soaked in the towel. Appreciation: Swallows often pick up wet mud from the waterside in spring to build their new nests. "Twice new" means that the poet has seen swallows building nests in mud twice here. In the poet's mind, this swallow is regarded as the swallow that lived in the same room in his hometown in previous years. It still remembers its master and comes to meet him in the boat from afar, and he is overjoyed.

3. Butterfly Love Flower·Spring Scene Song Dynasty: Su Shi

The flowers faded to red, green and apricots. When swallows fly, green water surrounds people. There are few willow trees blowing on the branches. There is no grass anywhere in the world! There is a swing inside the wall and a road outside the wall. Pedestrians outside the wall, beautiful women smiling inside the wall. The laughter gradually disappeared and became quieter. Passionate but annoyed by ruthlessness. Appreciation: Su Shi was good at boldness and elegance. This poem describes the fresh and beautiful spring scenery, and at the same time, the scenery is reasonable.

4. Suxi Pavilion, Tang Dynasty: Dai Shulun

The grass on Suxi Pavilion is long, and there is no one leaning against the east wind. The swallows do not return, it is late in spring, and the apricot blossoms are cold in the misty rain. Appreciation: The scenery written in the poem is that of late spring, and the emotion is the feeling of resentment and farewell. The weeds are growing and the ground is green. It is late spring. The poet describes the rich and misty scenery of late spring, which is consistent with the heavy and melancholy mood of Yilan people. The poem is charming, humane, meaningful and mellow.

5. Untitled Li Shangyin

Where are the mourning kites and emergency management, and the cherry blossoms are always hanging on the banks of the alleys. The old daughter of the owner is not for sale, and it is three and a half months during the day. Princess Liyang is fourteen years old, and she is watching from the same wall after the Qingming Festival. Returning to the fifth watch, the swallows in Liangjian sighed after hearing this. Appreciation: In late spring, in March, when youth is about to pass away, silk pipes are competed and enjoyed, the proud and happy life of a noble woman touches her feeling of loneliness, and adds to her inner depression and sadness. The last sentence begins with the incomprehensible Liang Yanyu "sighing after hearing it". The dotted dots on the side make it feel more meaningful and lingering.