Mulberry fields
Chinese metonymy for land turning to sea, symbolizing change.
Mulberry fields (桑田, sāngtián) is a Chinese metonymy for land that was or will be covered by oceans, used since at least the middle of the Tang dynasty. The phrase appears in Chinese literature and poetry, including the Zuo Zhuan, where it refers to the 'Shaman of Mulberry Fields.' Combined with 'blue seas' since the Jin dynasty, it forms the idiom 'the blue sea turned into mulberry fields' (滄海桑田), symbolizing great changes over time.
Quick Facts
- P
- cānghǎisāngtián / sāngtiáncānghǎi / cāngsāng
- J
- cong1 hoi2 song1 tin4 / song1 tin4 cong1 hoi2 / cong1 song1
- Vie
- bãi bể nương dâu / bể dâu / thương hải tang điền / tang thương / tang hải
- L
- the vast sea (turned into) mulberry fields
- Romaji
- sōkaisōden / sōdensōkai / sōdenhekikai
- Rr
- changhaesangjeon / sangjeonbyeokhae
Facts from the source article.
Lore & Background
The phrase 'mulberry fields' appears in the Zuo Zhuan, which recounts the death of Duke Jing of Jin and mentions the 'Shaman of Mulberry Fields.' The Han dynasty mathematics book Shushù jìyí by Xu Yue references the turning of blue seas into mulberry fields. Yan Zhenqing, in his work Magu Shan Xiantan Ji, wrote that on the high tops of Mount Magu clam and oyster shells could be found, and noted gardens and fields that once were underwater.
The idiom 'the blue sea turned into mulberry fields' first appears in Ge Hong's hagiographic work Shenxian zhuan (4th century CE, Jin dynasty). In that story, the immortal Magu tells Wang Yuan that since becoming an immortal, she has seen the Eastern Sea turn to mulberry fields three times. Wang Yuan responds that all sages say the Eastern Sea will once again become blowing dust.
The concept spread beyond China. In the Korean romance Chunhyangjeon, Yi Doryung writes a marriage letter stating that blue seas may turn into mulberry fields and mulberry fields into blue seas, but his heart will never change. In Vietnam, the Tale of Kieu opens with a line using the native phrase bể dâu, a calque of the Chinese term, referring to great upheaval.
Reader's Guide
The phrase 'mulberry fields' and its associated idioms have served as a powerful literary and philosophical symbol in East Asian cultures for over a millennium. Originating in Chinese texts from at least the Tang dynasty, the metonymy encapsulates the idea of profound, cyclical change—land becoming sea and sea becoming land. This concept appears across genres: historical records like the Zuo Zhuan and Records of the Grand Historian, mathematical writings, hagiographies, and poetry. The idiom 'the blue sea turned into mulberry fields' (滄海桑田) became a standard four-character expression for the transformations of the world. Its influence extended beyond China into Korea and Vietnam, where it was adapted into local literary works such as Chunhyangjeon and the Tale of Kieu. The enduring use of this imagery reflects a shared cultural understanding of impermanence and the vast timescales of geological and historical change.
Did You Know?
- The phrase 'mulberry fields' appears in the Zuo Zhuan, which mentions the 'Shaman of Mulberry Fields' in connection with the death of Duke Jing of Jin.
- In Ge Hong's Shenxian zhuan (4th century CE, Jin dynasty), the immortal Magu says she has seen the Eastern Sea turn to mulberry fields three times.
- The Korean romance Chunhyangjeon includes a marriage letter that uses the phrase 'blue seas may be turn into mulberry fields.'
Frequently Asked Questions
What is 'Mulberry fields' (桑田) in the context of imperial China?
It is a Chinese metonymy for land that has been or will be submerged by the ocean, expressing the idea that solid ground and sea can swap places. The term has circulated in Chinese literary and poetic usage since at least the middle of the Tang dynasty.
Where does the 'Mulberry fields' reference first appear in Chinese texts?
The earliest attested mention is in the Zuo Zhuan, which refers to a 'Shaman of Mulberry Fields.' This early usage predates the later, broader metaphorical sense of land-sea transformation that became standard in poetry.
What is the idiom 'the blue sea turned into mulberry fields' (滄海桑田)?
It is a fixed expression symbolizing sweeping, almost geological change across long stretches of time. The pairing of 'blue seas' with 'mulberry fields' was first recorded together during the Jin dynasty.
Who is credited with forming the 'blue sea / mulberry fields' idiom?
Ge Hong combined the two images in his Jin dynasty work Shenxian zhuan. Earlier sources such as the Han dynasty's Shushù jìyí used the elements separately before this pairing became a set phrase.
Why does the mulberry fields motif matter in Chinese literary history?
It functions as one of the most persistent symbols of impermanence, linking works from the Zuo Zhuan through Han, Tang, and Jin dynasty texts. Its recurrence across centuries made it a go-to image for poets and prose writers reflecting on the passage of time.
More in History of Imperial China 1-22
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