Grammatical Analysis
Passaddhi: [f.] tranquility; calming down; serenity; quietude. From root sambh (to calm, pacify, cease) with prefix pari. Doctrinally denotes the complete soothing or down-regulation of physical and mental disturbance.
Orthodox Definition
In the Theravāda Abhidhamma, passaddhi is a beautiful mental factor split into a precise structural pair that arises in every single beautiful consciousness (sobhana-citta):
- Kāya-passaddhi: Tranquility of the mental aggregates of feeling, perception, and formations (termed kāya here as the “body of mental factors”).
- Citta-passaddhi: Tranquility of the consciousness aggregate itself.
It functions as the fifth factor of enlightenment (passaddhi-sambojjhaṅga). Its primary psychological role is to directly counteract and pacify the disturbing, burning stains of restlessness and remorse (uddhacca-kukkucca).
The Atthasālinī notes that its characteristic is the quietening of mental disturbance (daratha-vūpasama-lakkhaṇā), acting like an oasis cooling a traveler parched by desert heat. It prepares the mind to slide smoothly into deep concentration (samādhi), for as the Buddha stated: “Passaddhakāyassa sukhaṃ hoti, sukhino cittaṃ samādhiyati” (The body of the tranquil is at ease; the mind of one at ease becomes concentrated).
Textual References
- Sutta: Ānāpānasati Sutta (MN 118) – Charting how tranquilizing the bodily and mental formations fulfills the enlightenment factor of composure.
- Abhidhamma: Dhammasaṅgaṇī (Analysis of the beautiful co-nascent factors).
- Commentary: Atthasālinī – Technical mapping defining the exact operational cooling effects of passaddhi against unwholesome agitation.