Enlightenment

In Buddhist usage, *bodhi* is the recognition of the *three marks of existence* (impermanence, suffering, non-self) and the cessation of clinging that follows. The goal in Theravāda is the *arahant*'s final liberation; in Mahāyāna, the longer bodhisattva path of awakening for the benefit of all beings. In Hindu Advaita Vedanta, *mokṣa* is the direct recognition of *ātman–brahman* identity, formalised by Shankara (~8th century CE) in works including the *Brahma Sūtra Bhāṣya*. Zen *satori* and *kenshō* describe a sudden recognition of one's original nature, traditionally sparked by *kōan* practice in Rinzai or by quiet sitting (*shikantaza*) in Sōtō. Sufi *fanāʾ* (annihilation of self) and *baqāʾ* (subsistence in God) name a related two-stage Islamic mystical realisation. The path varies by school but typically involves sustained meditation, ethical practice (*śīla*), study of the relevant texts, and direct instruction from a qualified teacher. No tradition treats enlightenment as a goal achievable by self-study alone.

The English word 'enlightenment' traces back to the Latin *illuminatio* and the Old English *inlīhtan*, both carrying the core sense of bringing light to something previously dark. As a spiritual concept, it gained its modern shape in two largely separate streams. In Buddhist thought, the idea maps onto the Pali *bodhi* — literally 'awakening' — the state Siddhartha Gautama reached under the Bodhi tree around the 5th century BCE, as recorded in texts like the Pali Canon. In Western usage, 'enlightenment' as a philosophical and spiritual category solidified during the 17th–18th century European Enlightenment, though that movement used the term in a rationalist, not mystical, sense. The two meanings got layered together in English largely through 19th-century translations of Buddhist and Hindu texts, when scholars like Max Müller brought Indian philosophy to Western readers and 'enlightenment' became the default translation for *bodhi*, *moksha*, and *satori* — three distinct concepts from three distinct traditions.

Start with primary sources rather than summaries. Thich Nhat Hanh's 'The Heart of the Buddha's Teaching' covers the Buddhist framework clearly without oversimplifying it. For the Hindu side, the Bhagavad Gita — any translation with commentary, though Eknath Easwaran's is readable — lays out what liberation actually means in that context. If you want a more philosophical angle, William James's 'The Varieties of Religious Experience' (1902) treats mystical states as data worth examining. Adyashanti teaches in plain English and posts free talks online — worth an hour of your time before committing to anything longer.