So why do many people think that autumn is a year now? Because many crops mature in autumn and are harvested once a year. After a long time, people think that an autumn means a maturity and a year. But this is actually a misunderstanding.
This sentence is usually used between lovers, which means that we haven't seen each other for a few days, but we miss each other very much, as if we haven't seen each other for years. This is an exaggerated expression, but it also reflects the feeling that lovers are inseparable and want to be together every day.
If you have experienced a long-distance relationship, you will feel this feeling more deeply. I have a good friend who has always been in a long-distance relationship with me. Every time I listened to her description, she said that on the way back, just a few minutes after getting on the bus, she began to miss her boyfriend. Although we have only been apart for a few minutes, I feel separated for a long time, and I have already begun to miss him.
At first, two people fell in love. My boyfriend is only on a business trip for a few days. When he came back, they wanted to stick together for 24 hours and always felt that they had been apart for a long time. This feeling expresses the meaning of this sentence very well.
This sentence first came from the Book of Songs. Autumn is the season when everything is depressed. Seeing such a scene makes people feel sad about parting, and many parting poems are also written in autumn.