八拜之交 (Bā bài zhī jiāo)

Basic Info

• Chinese Idiom: 八拜之交 (Bā bài zhī jiāo)
• Pinyin: bā bài zhī jiāo
• Literal meaning: “Friendship of the eight bows.”
  (八拜 = eight bows, a formal ceremonial greeting in ancient China; 之交 = friendship / bond)

Figurative Definition

It describes sworn siblings – people who are not related by blood but who have taken a formal oath of lifelong loyalty and kinship. They commit to treating each other as true brothers or sisters: supporting each other in hardship, protecting each other’s honor, and honoring the bond as if it were a blood relationship.

In modern usage, it is used to describe the deepest, most loyal form of friendship – a bond stronger than ordinary friendship, almost family.

In short: sworn brotherhood / sworn sisterhood.

Cultural & Historical Origin

The idiom comes from the Yuan Dynasty play Romance of the Western Chamber (《西厢记》) by Wang Shifu (王实甫), Act 1, Scene 1:

“有一故人，姓杜名确，字君实，与小生同郡同学，当初为八拜之交。”

“There is an old friend, surnamed Du, named Que, courtesy name Junshi, who was from the same prefecture and studied with me. In the beginning, we were sworn brothers of the eight bows.”

What were the “eight bows”?

In ancient China, “八拜” referred to a formal ceremonial greeting – eight successive bows performed when meeting an elder or someone of high status. Over time, it became associated with the solemn ritual of becoming sworn siblings: two unrelated people would bow together to Heaven and Earth, to their parents, and to each other, pledging lifelong loyalty. This ceremony made them “八拜之交” – sworn siblings bound by oath.

The most famous examples of sworn brotherhood in Chinese culture include:

• Liu Bei, Guan Yu, and Zhang Fei from Romance of the Three Kingdoms – the Peach Garden Oath (桃园三结义).
• Lu Zhishen and Lin Chong, from the novel Water Margin, became sworn brothers after they met and admired each other’s bravery. Their bond shows loyalty among warrior-friends.

Key Lesson

Loyalty is a choice, not just a bloodline. The idiom celebrates the idea that deep, committed relationships can be built on choice, trust, and shared values – not only on family ties. A “八拜之交” is someone who stands by you as if they were family, because they chose to. But it also carries a responsibility: if you swear such a bond, you must honor it. Sworn brotherhood was not taken lightly – it was a lifelong commitment to loyalty, sacrifice, and mutual protection.

Cultural Note

In traditional Chinese culture, “八拜之交” was a serious social institution. Sworn siblings often:

• Supported each other financially and politically.
• Protected each other’s families.
• Avenged each other’s wrongs.
• Treated each other’s parents as their own.

It appears frequently in wuxia novels, historical dramas, and classic literature. In modern Chinese, the idiom is still used to describe extraordinarily close friendships – though the formal ceremony is rare today. You might hear someone say:

“我们俩是八拜之交，有福同享，有难同当。”

“The two of us are sworn brothers – we share blessings and share hardships.”

It is closely related to “金兰之好” (jīn lán zhī hǎo – “friendship of gold and orchid,” another term for sworn friendship). Its opposite is “九世之仇” (jiǔ shì zhī chóu – “a feud lasting nine generations”), which describes a hatred so deep it persists for generations – the polar opposite of sworn loyalty.

Similar English Expressions

• Sworn brothers / Sworn sisters – The most direct and natural equivalent.
• Blood brothers – Close friends bound by loyalty as if by blood.
• To become blood brothers – The act of making such a bond (often with a ritual).
• A bond stronger than blood – Emphasizing loyalty beyond family ties.
• Bosom friends – Very close friends (less formal than sworn siblings).
• Best friends forever (BFF) – A modern, informal equivalent.
• Through thick and thin – Describing the kind of friendship the idiom implies.
• Ride or die – Modern slang for someone who will always stand by you (informal).

The closest and most natural equivalents are “sworn brothers,” “sworn sisters,” and “blood brothers.”

In short, “八拜之交” means a friendship of the eight bows – a solemn, lifelong bond between people who are not related by blood but choose to be as close as family. It is one of the most powerful expressions of loyalty and chosen kinship in the Chinese language.