What is the exact meaning of 'acala sukha'? Is it mentioned in the Pali-canon? If so, where ? In what context ?

2 Answers 2


The PTS dictionary says,

Cala (adj.) [see calati] moving, quivering; unsteady, fickle, transient S iv.68 (dhammā calā c' eva vyayā ca aniccā, etc.); J ii.299; iii.381; v.345; Miln 93, 418; Sdhp 430, 494.
-- acala steadfast, immovable S i.232; J i.71 (ṭṭhāna); Vv 514 (˚ṭṭhāna=Ep. of Nibbāna); acalaŋ sukhaŋ (=Nibbāna) Th 2, 350; cp. niccala motionless DhA iii.38

So cala means "unsteady", acala means "not unsteady", and acala sukha means "unwavering happiness" i.e. nibbana.

The phrase is in some of the suttas, e.g. the last line of Ud 8.10; and the end of the first verse of Thag 3.16.

  • 1
    +1 with one caveat, sukha is rather something like "peace", the (quiet) state of no trouble, than a rapturous type of happiness. Maybe "nonquivering peace"...
    – Andriy Volkov
    Nov 12, 2017 at 13:29
  • 1
    I hoped the OP would already know sukha (see e.g. PTS definition here and Wikipedia here).
    – ChrisW
    Nov 12, 2017 at 13:37

Stuffs turn Vaṭṭa on (vaṭṭa) = appearing stuffs in paṭiccasamuppāda = non stopping cycling of stuffs = anicca (unstable) & dukkha = cala (unstable) = whole 5 aggregates (stuffs)

Stuffs turn vaṭṭa off (vivaṭṭa) = disappeared stuffs in paṭiccasamuppāda = stopped cycling of stuffs = niccatā (stable) & sukkha = acala (stable) = nibbāna

Whole 5 aggregates and nibbāna are anatta.

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