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. Vimukti 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 German-born 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.
What exactly constituted the Buddha's awakening is unknown. It may have involved the knowledge that liberation was attained by the combination of mindfulness and dhyāna, applied to the understanding of the arising and ceasing of craving. The relation between dhyana and insight is a core problem in the study of Buddhism, and is one of the fundamentals of Buddhist practice.
In the Western world, the concept of (spiritual) enlightenment has taken on a romantic meaning. It has become synonymous with self-realization and the true self and false self, being regarded as a substantial essence being covered over by social conditioning.
Bodhi, Sanskrit बोधि, "awakening," "perfect knowledge," "perfect knowledge or wisdom (by which a man becomes a बुद्ध [Buddha] or जिन [jina, arahant; "victorious," "victor"], the illuminated or enlightened intellect (of a Buddha or जिन).