但愿人长久，千里共婵娟 Meaning: The Mid-Autumn Line Everyone Quotes and Almost Nobody Translates Properly

Short answer: 但愿人长久，千里共婵娟 (dàn yuàn rén cháng jiǔ, qiān lǐ gòng chán juān) means roughly "May we live long, and share this moonlight though a thousand miles apart." It closes 《水调歌头》, written by 苏轼 (Su Shi) at the Mid-Autumn Festival of 1076. 婵娟 (chánjuān) is not a person — it is the moon. And the line is not a blessing offered from a happy place: Su Shi wrote it drunk at dawn, missing a brother he had not seen in years, having just talked himself out of despair.

---

The line in full

人有悲欢离合，月有阴晴圆缺，此事古难全。 但愿人长久，千里共婵娟。

People know grief and joy, parting and reunion; the moon has its dark and clear, its waxing and waning. This has never been something you can have whole. Only let us live long, and share this moonlight across a thousand miles.

You cannot read the famous half honestly without the half above it, and most Mid-Autumn greeting cards print only the famous half. That edit turns a hard-won consolation into a pleasantry.

What 婵娟 actually means

婵娟 (chánjuān) originally described a woman of graceful beauty. By Su Shi's time it had become a poetic name for the moon — and that is unmistakably its sense here, because the whole poem is addressed to the moon.

So the line does not say "may we be together." It says the opposite: we are apart, we will stay apart, and the one thing we can still hold in common is the light falling on both of us. The consolation is deliberately thin. That is the point.

Why he wrote it

The poem carries its own preface, which is unusually specific:

丙辰中秋，欢饮达旦，大醉。作此篇，兼怀子由。 Mid-Autumn of the bingchen year. Drank happily until dawn, got very drunk. Wrote this piece, and thought of Ziyou too.

丙辰 is 1076. Su Shi was posted at 密州 (Mizhou), in what is now Shandong — a provincial appointment, far from the capital and far from where he wanted to be. 子由 (Ziyou) is his younger brother 苏辙 (Su Zhe), from whom he had been separated for years by their respective postings.

So: a demoted official, in a provincial town, drunk at sunrise on the one festival of the year that is explicitly about families being together, writing to a brother he cannot reach.

The famous line is what he arrives at after failing to find anything better.

The turn that makes it work

The poem's first half is escapist. He asks the moon how long it has existed, wonders what year it is up in the heavenly palace, and says he wants to ride the wind and go home to it — then stops himself:

又恐琼楼玉宇，高处不胜寒 but I fear those jade towers and marble halls — up high, the cold is more than one can bear.

高处不胜寒 — "at great heights the cold is unbearable" — became its own proverb, and it is usually read as a comment on power: the higher your position, the more exposed you are. For a demoted official writing in 1076, that reading is not accidental.

Having refused the escape, he has nowhere left to go but acceptance. 人有悲欢离合，月有阴晴圆缺 — people and moons are both incomplete by nature, in the same way, on the same schedule. Once you concede that, the only wish left worth making is that everyone survives to see the next full moon.

Why it is the Mid-Autumn line

Mid-Autumn Festival — 中秋节, 3 October in 2026 — is about reunion under a full moon. But the people most likely to be quoting a Mid-Autumn poem are the ones who cannot get home for it: students abroad, migrant workers, anyone separated by distance.

Su Shi wrote the definitive text for exactly that audience, a thousand years early. It is why the line appears on every mooncake box and in every festival message, and why it survives translation badly — rendered as "may we all be blessed with longevity," it sounds like a toast. In Chinese it sounds like someone talking himself down.

The idiom Chinese uses for the outcome the festival hopes for is 花好月圆 (huā hǎo yuè yuán) — flowers at their best, moon at its fullest, the standard wish for weddings and reunions. Su Shi's line is what you say when 花好月圆 is not available.

Where you will have heard it

In 1983 the composer 梁弘志 set the poem to music as 但愿人长久, recorded by 邓丽君 (Teresa Teng). That recording is why many Chinese speakers under sixty know the words by heart without having studied the Song dynasty — they learned them as a song. It has been covered many times since, most prominently by 王菲 (Faye Wong).

Using it without sounding like a greeting card

• The safe register is sincere, not celebratory. It suits someone you genuinely miss — family abroad, a friend you have not seen in years. It is odd in a group chat.
• Quote both halves if you can. 人有悲欢离合，月有阴晴圆缺 is what earns the ending.
• It is not for new love. The line is about endurance across distance and time, not attraction.

For the feeling of being far from people you would rather be with, Chinese has 天涯海角 (tiān yá hǎi jiǎo), the ends of the earth, and 千里迢迢 (qiān lǐ tiáo tiáo), a journey of a thousand miles — the same 千里 Su Shi uses. For the specific ache of a familiar sight bringing someone absent to mind, which is the whole mechanism of the poem, there is 触景生情 (chù jǐng shēng qíng).

And for waiting itself, 望穿秋水 (wàng chuān qiū shuǐ) — to stare until the autumn waters wear through. Autumn again. It is the season Chinese literature reserves for missing people.

---

Related

• Chinese idioms for the Mid-Autumn Festival
• Moon and reunion idioms for Mid-Autumn
• 花好月圆 — flowers at their best, moon at its fullest