योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-33, verse-8

अचेतनादिदं सर्वमुपलस्येव शाम्यति ।
शून्याख्यातः परालीनचित्तस्य चित्त्वभावनात् ॥ ८ ॥

acetanādidaṃ sarvamupalasyeva śāmyati ,
śūnyākhyātaḥ parālīnacittasya cittvabhāvanāt 8

8. acetanāt idam sarvam upalasya iva śāmyati
śūnya-ākhyātaḥ para-alīna-cittasya cittva-bhāvanāt

8. acetanāt idam sarvam upalasya iva śāmyati para-alīna-cittasya (janasya),
(yasya avasthā) śūnya-ākhyātaḥ,
cittva-bhāvanāt (evam bhavati)

8. This entire universe, originating from the insentient, subsides like a stone (upala) for one whose mind (citta) is absorbed in the Supreme (para), due to the contemplation (bhāvanā) of pure consciousness, which (state) is described as emptiness (śūnyatā).

Words meanings summery:

• अचेतनात् (acetanāt) - from the insentient, from the unconscious

• इदम् (idam) - this (universe) (this)

• सर्वम् (sarvam) - all, the entire universe (all, whole, entire)

• उपलस्य (upalasya) - of a stone, stone's

• इव (iva) - like, as if, as

• शाम्यति (śāmyati) - it becomes tranquil, it subsides, it ceases

• शून्याख्यातः (śūnyākhyātaḥ) - the state of the absorbed mind described as emptiness (śūnyatā) (described as emptiness, termed emptiness)

• परालीनचित्तस्य (parālīnacittasya) - of one whose mind is absorbed in the Supreme

• चित्त्वभावनात् (cittvabhāvanāt) - from the contemplation of consciousness, due to the realization of pure consciousness

Words meanings and morphology

अचेतनात् (acetanāt) - from the insentient, from the unconscious

(adjective)

Ablative, neuter, singular of acetana

acetana - insentient, unconscious, inert, non-sentient

Compound type : nañ-tatpuruṣa (a+cetana)

• a – not, non
  indeclinable
• cetana – conscious, sentient, mind
  adjective (neuter)
  Root: cit (class 1)

इदम् (idam) - this (universe) (this)

(pronoun)

Nominative, neuter, singular of idam

idam - this, here

सर्वम् (sarvam) - all, the entire universe (all, whole, entire)

(pronoun)

Nominative, neuter, singular of sarva

sarva - all, every, whole, entire

उपलस्य (upalasya) - of a stone, stone's

(noun)

Genitive, masculine, singular of upala

upala - a stone, rock, gem

इव (iva) - like, as if, as

(indeclinable)

शाम्यति (śāmyati) - it becomes tranquil, it subsides, it ceases

(verb)

3rd person , singular, active, present (laṭ) of śam

Root: śam (class 4)

शून्याख्यातः (śūnyākhyātaḥ) - the state of the absorbed mind described as emptiness (śūnyatā) (described as emptiness, termed emptiness)

(adjective)

Nominative, masculine, singular of śūnyākhyāta

śūnyākhyāta - called emptiness, designated as void

Past Passive Participle (ākhyāta)

Compound type : tatpuruṣa (śūnya+ākhyāta)

• śūnya – empty, void, nothingness
  adjective (neuter)
• ākhyāta – named, called, described
  adjective (neuter)
  Past Passive Participle
  Prefix: ā
  Root: khyā (class 2)

परालीनचित्तस्य (parālīnacittasya) - of one whose mind is absorbed in the Supreme

(adjective)

Genitive, masculine, singular of parālīnacitta

parālīnacitta - one whose mind (citta) is dissolved or absorbed (alīna) in the Supreme (para)

Compound type : bahuvrīhi (para+alīna+citta)

• para – supreme, highest, ultimate
  adjective (masculine)
• alīna – absorbed, merged, dissolved
  adjective (neuter)
  Past Passive Participle
  Prefix: ā
  Root: lī (class 4)
• citta – mind, consciousness, thought (citta)
  noun (neuter)
  Root: cit (class 1)

चित्त्वभावनात् (cittvabhāvanāt) - from the contemplation of consciousness, due to the realization of pure consciousness

(noun)

Ablative, feminine, singular of cittvabhāvanā

cittvabhāvanā - contemplation or cultivation of consciousness (cittva-bhāvanā)

Compound type : tatpuruṣa (cittva+bhāvanā)

• cittva – the state of being consciousness
  noun (neuter)
  Root: cit (class 1)
• bhāvanā – contemplation, meditation, cultivation, realization
  noun (feminine)
  From root bhū, causative
  Root: bhū (class 1)