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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.
Biography source: Wikipedia ↗