Nirvana - wikipedia

Nirvana is a state of 'ultimate' peace.  
Nirvana is a state of release from a prior state of bondage.


Origins

The concept of nirvana comes from the Yogic traditions of the Sramanas whose origins go back to at least the earliest centuries of the first millennium BCE.[a] The Pali Canon contains the earliest written detailed discussion of nirvana and the concept has thus become most associated with the teaching of the historical Buddha. It was later adopted in the Bhagavad Gita of the Mahabharata. In Buddhism nirvana is preceded by bodhi, knowledge into the causal mechanism by which beings incarnate into material form and experience suffering.
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