Fetter (Buddhism) in the context of Vimutti

The English term enlightenment is the Western translation of various Buddhist terms, most notably bodhi and vimutti. The abstract noun bodhi (/ˈboʊdi/; Sanskrit: बोधि; Pali: bodhi) means the knowledge or wisdom, or awakened intellect, of a Buddha. The verbal root budh- means "to awaken", and its literal meaning is closer to awakening. Although the term buddhi is also used in other Indian philosophies and traditions, its most common usage is in the context of Buddhism. Vimutti is the freedom from or release of the fetters and hindrances.

The term enlightenment was popularised in the Western world through the 19th-century translations of British philologist Max Müller. It has the Western connotation of general insight into transcendental truth or reality. The term is also being used to translate several other Buddhist terms and concepts, which are used to denote (initial) insight (prajna (Sanskrit), wu (Chinese), kensho and satori (Japanese)); knowledge (vidya); the "blowing out" (nirvana) of disturbing emotions and desires; and the attainment of supreme Buddhahood (samyak sam bodhi), as exemplified by Gautama Buddha.

Nirvana, in the Indian religions (Jainism, Hinduism, Buddhism, and Sikhism), is the concept of an individual's passions being extinguished as the ultimate state of salvation, release, or liberation from suffering (duḥkha) and from the cycle of birth and rebirth (saṃsāra).

In Indian religions, nirvana is sometimes used as a synonym of moksha and mukti. All Indian religions assert it to be a state of perfect quietude, freedom, and highest happiness; liberation from attachment and worldly suffering; and the ending of samsara, the cycle of existence. However, non-Buddhist and Buddhist traditions describe these terms for liberation differently. In Hindu philosophy, it is the union of or the realization of the identity of Atman with Brahman, depending on the Hindu tradition. In Jainism, nirvana is also the soteriological goal, representing the release of a soul from karmic bondage and samsara. The Buddhist concept of nirvana is the abandonment of the 10 fetters, marking the end of rebirth by stilling the "fires" that keep the process of rebirth going.