Henosis ἕνωσις

Henosis (ἕνωσις, “union,” “becoming-one”) is the Greek philosophical and mystical term for the contemplative consummation in which the soul attains identity, or near-identity, with the divine source. The Plotinian register makes henosis the crowning achievement of the philosophical life: the soul, having ascended through discursive reasoning to intellect (nous) and through intellect to the One, momentarily becomes one with the One in a state Plotinus describes as more self-presence than addition. The Plotinian henosis is not annihilation; the soul returns to ordinary consciousness afterward, transformed by what it has briefly been.

The Christian reception is more cautious. Pseudo-Dionysius and the patristic tradition generally maintain the creature-creator distinction more sharply than Plotinus does, and prefer theosis (deification) for the consummated state because deification can be construed as the creature elevated rather than identified. The medieval Latin tradition (Eckhart most provocatively) sometimes recovers a Plotinian-strength henosis, generating the controversy that led to Eckhart’s posthumous condemnation. The mystical tradition’s negotiation between Plotinian henosis and patristic theosis is one of its central doctrinal debates.

Etymology

From Greek hen (one) + the action-noun suffix -ōsis: “the becoming-one.” The parallel formation theōsis (the becoming-divine) is morphologically and doctrinally twinned with henosis, the two terms naming the same consummation from the unifying and the divinizing aspects respectively.

Cross-tradition resonance

Sufi fana dissolves the ego-self into the divine; henosis unifies the soul with the divine; Hasidic devekut permanently cleaves the soul to the divine without collapsing the distinction. The three terms together name a contemplative-typology spectrum from full dissolution (fana) through identification (henosis) to durable attachment (devekut). Each tradition’s preferred term reveals its theological priorities about the creature-creator boundary.

Primary sources

• Plotinus, Enneads VI.9: “On the Good or the One,” the locus classicus for henosis as philosophical consummation.
• Pseudo-Dionysius, Divine Names and Mystical Theology: henosis within the Christian apophatic ascent.
• Eckhart, German sermons: the most Plotinian Christian retrieval of the term.

Scholarly literature

• Hadot, Plotinus, or the Simplicity of Vision: the Plotinian henosis.
• McGinn, The Mystical Thought of Meister Eckhart: Eckhart’s Christianized retrieval.

Hekhal Editorial. "Henosis." Hekhal: An Open Reference for Esoteric Tradition. Last modified May 2, 2026. https://hekhal.org/lexicon/henosis.

Hekhal Editorial. 2026. "Henosis." Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/henosis.

Hekhal Editorial. "Henosis." Hekhal: An Open Reference for Esoteric Tradition, May 2, 2026, hekhal.org/lexicon/henosis.

Hekhal Editorial. (2026). Henosis. Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/henosis

@misc{hekhal-lexicon-henosis-2026,
  author       = {{Hekhal Editorial}},
  title        = {{Henosis}},
  year         = {2026},
  publisher    = {{Hekhal: An Open Reference for Esoteric Tradition}},
  url          = {https://hekhal.org/lexicon/henosis},
  urldate      = {[date accessed]}
}