In Buddhism, a mental fetter, chain or bond (Pāli: samyojana, ) shackles a sentient being to saṃsāra, the cycle of lives with dukkha. By cutting through all fetters, one attains nibbāna (Pali; Skt.: निर्वाण, nirvāa).

Fetter of suffering

Throughout the Pali canon, the word "fetter" is used to describe an intrapsychic phenomenon that ties one to suffering. For example, in the Itivuttaka, the Buddha says: ""Monks, I don't envision even one other fetter — fettered by which beings conjoined go wandering and transmigrating on for a long, long time—like the fetter of craving. Fettered with the fetter of craving, beings conjoined go wandering & transmigrating on for a long, long time."

• Khuddaka Nikaya Elsewhere, the suffering caused by a fetter is implied as in this more technical discourse from Samyutta Nikaya 35.232, where Ven. Sariputta converses with Ven. Kotthita: "Ven. Kotthita: "How is it, friend Sariputta, is ... the ear the fetter of sounds or are sounds the fetter of the ear?..." Ven. Sariputta: "Friend Kotthita, the ... ear is not the fetter of sounds nor are sounds the fetter of the ear, but rather the desire and lust that arise there in dependence on both: that is the fetter there....""

Lists of fetters

The fetters are enumerated in different ways in the Pali canon's Sutta Pitaka and Abhidhamma Pitaka.

Sutta Pitaka's list of ten fetters

The Pali canon's Sutta Pitaka identifies ten "fetters of becoming": As indicated in the adjacent table, throughout the Sutta Pitaka, the first five fetters are referred to as "lower fetters" (orambhāgiyāni saṃyojanāni) and are eradicated upon becoming a non-returner; and, the last five fetters are referred to as "higher fetters" (uddhambhāgiyāni saṃyojanāni), eradicated by an arahant.

Three fetters

Both the Sagīti Sutta (DN 33) and the Dhammasai (Dhs. 1002-1006) refer to the "three fetters" as the first three in the aforementioned Sutta Pitaka list of ten: According to the Canon, these three fetters are eradicated by stream-enterers and once-returners.

Abhidhamma Pitaka's list of ten fetters

The Abhidhamma Pitaka's Dhamma Sangani (Dhs. 1113-34) provides an alternate list of ten fetters, also found in the Khuddaka Nikaya's Culla Niddesa (Nd2 656, 1463) and in post-canonical commentaries. This enumeration is: The commentary mentions that views, doubt, attachment to rites and rituals, jealousy and greed are thrown off at the first stage of Awakening (sotāpatti); gross sensual lust and anger by the second stage (sakadāgāmitā) and even subtle forms of the same by the third stage (anāgāmitā); and conceit, lust for existence and ignorance by the fourth and final stage (arahatta).

Fetters related to householder affairs

Uniquely, the Sutta Pitaka's "Householder Potaliya" Sutta (MN 54), identifies eight fetters (including three of the Five Precepts) whose abandonment "lead[s] to the cutting off of affairs" (vohāra-samucchedāya saṃvattanti):

Individual fetters

The following fetters are the first three mentioned in the Sutta Pitaka's list of ten fetters, as well as the Sagīti Sutta and Abhidhamma Pitaka's list of "three fetters" (DN 33, Dhs. 1002 ff.). As indicated below, eradication of these three fetters is a canonical indicator of one's being irreversibly established on the path to Enlightenment.

Identity view (sakkāya-dihi)

Etymologically, kāya means "body," sakkāya means "existing body," and means "view" (here implying a wrong view, as exemplified by the views in the table below). In general, "belief in an individual self" or, more simply, "self view" refers to a "belief that in one or other of the khandhas there is a permanent entity, an attā." Similarly, in MN 2, the Sabbasava Sutta, the Buddha describes "a fetter of views" in the following manner:

Doubt (vicikicchā)

In general, "doubt" (vicikicchā) refers to doubt about the Buddha's teachings, the Dhamma. (Alternate contemporaneous teachings are represented in the adjacent table.) More specifically, in SN 22.84, the Tissa Sutta, the Buddha explicitly cautions against uncertainty regarding the Noble Eightfold Path, which is described as the right path to Nibbana, leading one past ignorance, sensual desire, anger and despair.

Attachment to rites and rituals (sīlabbata-parāmāso)

Śīla refers to "moral conduct", vata (or bata) to "religious duty, observance, rite, practice, custom," and parāmāsa to "being attached to" or "a contagion" and has the connotation of "mishandling" the Dhamma. Altogether, sīlabbata-parāmāso has been translated as "the contagion of mere rule and ritual, the infatuation of good works, the delusion that they suffice" or, more simply, "fall[ing] back on attachment to precepts and rules." While the fetter of doubt can be seen as pertaining to the teachings of competing samana during the times of the Buddha, this fetter regarding rites and rituals likely refers to some practices of contemporary brahmanic authorities.

Cutting through the fetters

In MN 64, the "Greater Discourse to Mālunkyāputta," the Buddha states that the path to abandoning the five lower fetters (that is, the first five of the aforementioned "ten fetters") is through using jhana attainment and vipassana insights in tandem. In SN 35.54, "Abandoning the Fetters," the Buddha states that one abandons the fetters "when one knows and sees ... as impermanent" (Pali: anicca) the twelve sense bases (āyatana), the associated six sense-consciousness (), and the resultant contact (phassa) and sensations (vedanā). Similarly, in SN 35.55, "Uprooting the Fetters," the Buddha states that one uproots the fetters "when one knows and sees ... as nonself" (anatta) the sense bases, sense consciousness, contact and sensations. The Pali canon traditionally describes cutting through the fetters in four stages:

Relationship to other core concepts

Similar Buddhist concepts found throughout the Pali Canon include the five hindrances (nīvaraāni) and the ten defilements (kilesā). Comparatively speaking, in the Theravada tradition, fetters span multiple lifetimes and are difficult to remove, while hindrances are transitory obstacles. Defilements encompass all mental defilements including both fetters and hindrances.