योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-34, verse-18

अचेतनं चेतनं च स्पन्दास्पन्दवदात्मनः ।
स्वायत्ते न कदर्थस्थे स्वस्थपाषाणवत्स्थिते ॥ १८ ॥

acetanaṃ cetanaṃ ca spandāspandavadātmanaḥ ,
svāyatte na kadarthasthe svasthapāṣāṇavatsthite 18

18. acetanam cetanam ca spanda-aspanda-vat ātmanaḥ
sva-āyatte na kad-artha-sthe svastha-pāṣāṇa-vat sthite

18. ātmanaḥ sva-āyatte acetanam ca cetanam ca spanda-aspanda-vat.
na kad-artha-sthe,
na svastha-pāṣāṇa-vat sthite.

18. Both the unconscious (acetana) and the conscious (cetana), akin to things that move and those that do not, are dependent on the Self (ātman). They are not in a state of being misconstrued, nor are they fixed like a firmly rooted, unmoving stone.

Words meanings summery:

• अचेतनम् (acetanam) - the unconscious, the inanimate

• चेतनम् (cetanam) - the conscious, the animate

• च (ca) - and

• स्पन्द-अस्पन्द-वत् (spanda-aspanda-vat) - like moving and unmoving things

• आत्मनः (ātmanaḥ) - of the Self, from the Self

• स्व-आयत्ते (sva-āyatte) - dependent on oneself, self-controlled

• न (na) - not

• कद्-अर्थ-स्थे (kad-artha-sthe) - in a wrong meaning or misconception, wrongly situated

• स्वस्थ-पाषाण-वत् (svastha-pāṣāṇa-vat) - like a firm stone, like a steady stone

• स्थिते (sthite) - situated, standing, remaining

Words meanings and morphology

अचेतनम् (acetanam) - the unconscious, the inanimate

(noun)

Nominative, neuter, singular of acetana

acetana - unconscious, inanimate, insentient, inert

negation 'a-' of 'cetana'

Prefix: a

Root: cit

चेतनम् (cetanam) - the conscious, the animate

(noun)

Nominative, neuter, singular of cetana

cetana - conscious, animate, sentient, consciousness

from root √cit (to perceive, to be conscious)

Root: cit

च (ca) - and

(indeclinable)

स्पन्द-अस्पन्द-वत् (spanda-aspanda-vat) - like moving and unmoving things

(indeclinable)

Compound type : bahuvrīhi (spanda-aspanda+vat)

• spanda-aspanda – movement and non-movement, moving and unmoving
  noun (masculine)
• vat – like, resembling, similar to (suffix)
  indeclinable
  suffix forming adverbs or adjectives

आत्मनः (ātmanaḥ) - of the Self, from the Self

(noun)

masculine, singular of ātman

ātman - self, soul, spirit, essence, life, Brahman

स्व-आयत्ते (sva-āyatte) - dependent on oneself, self-controlled

(adjective)

Nominative, neuter, dual of sva-āyatta

sva-āyatta - self-dependent, subject to oneself, under one's own control

Compound type : tatpuruṣa (sva+āyatta)

• sva – own, one's own
  pronoun/adjective
• āyatta – dependent on, subject to, controlled by
  participle (masculine)
  Past Passive Participle
  from upasarga 'ā-' + root 'yam' (to restrain, to control)
  Prefix: ā
  Root: yam (class 1)

Note: Refers to both 'acetanam' and 'cetanam'.

न (na) - not

(indeclinable)

कद्-अर्थ-स्थे (kad-artha-sthe) - in a wrong meaning or misconception, wrongly situated

(adjective)

Nominative, neuter, dual of kad-artha-stha

kad-artha-stha - situated in a bad meaning or purpose, wrongly conceived

Compound type : tatpuruṣa (kad-artha+stha)

• kad-artha – bad meaning, wrong purpose, absurdity
  noun (masculine)
• stha – standing, situated, abiding in (suffix)
  adjective
  derived from root √sthā (to stand)
  Root: sthā (class 1)

Note: Agrees with 'acetanam' and 'cetanam'.

स्वस्थ-पाषाण-वत् (svastha-pāṣāṇa-vat) - like a firm stone, like a steady stone

(indeclinable)

Compound type : bahuvrīhi (svastha-pāṣāṇa+vat)

• svastha-pāṣāṇa – a firm stone, a steady stone
  noun (masculine)
• vat – like, resembling, similar to (suffix)
  indeclinable
  suffix forming adverbs or adjectives

स्थिते (sthite) - situated, standing, remaining

(participle)

Nominative, neuter, dual of sthita

sthita - standing, situated, remaining, fixed

Past Passive Participle

derived from root √sthā (to stand)

Root: sthā (class 1)

Note: Agrees with 'acetanam' and 'cetanam'.