योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-40, verse-26

अनुद्विग्नप्रबोधोऽसौ सर्गादौ चित्तदेहकः ।
आकाशत्मा महान्भूत्वा वेत्ति प्रकृततां ततः ॥ २६ ॥

anudvignaprabodho'sau sargādau cittadehakaḥ ,
ākāśatmā mahānbhūtvā vetti prakṛtatāṃ tataḥ 26

26. anudvignaprabodhaḥ asau sarga-ādau cittadehaḥ
ākāśa-ātmā mahān bhūtvā vetti prakṛtatām tataḥ

26. sarga-ādau asau anudvignaprabodhaḥ cittadehaḥ (ca) ākāśa-ātmā mahān bhūtvā,
tataḥ prakṛtatām vetti.

26. That supreme consciousness, characterized by undisturbed awakening and having consciousness itself as its body, at the beginning of creation, becomes vast and takes on the nature of space (ākāśa). From that point, it perceives its material aspect (prakṛti).

Words meanings summery:

• अनुद्विग्नप्रबोधः (anudvignaprabodhaḥ) - having undisturbed awakening/consciousness

• असौ (asau) - refers to the ultimate reality or pure consciousness (that (one))

• सर्ग-आदौ (sarga-ādau) - at the beginning of creation

• चित्तदेहः (cittadehaḥ) - whose body is consciousness/mind

• आकाश-आत्मा (ākāśa-ātmā) - whose nature/self is space (ātman)

• महान् (mahān) - great, vast, mighty

• भूत्वा (bhūtvā) - having become, being

• वेत्ति (vetti) - knows, understands

• प्रकृतताम् (prakṛtatām) - the state of being material nature, materiality

• ततः (tataḥ) - thence, thereupon, from that, afterwards

Words meanings and morphology

अनुद्विग्नप्रबोधः (anudvignaprabodhaḥ) - having undisturbed awakening/consciousness

(adjective)

Nominative, masculine, singular of anudvignaprabodha

anudvignaprabodha - one whose awakening is undisturbed

Compound type : bahuvrīhi (anudvigna+prabodha)

• anudvigna – undisturbed, unagitated
  adjective (masculine)
  Past Passive Participle
  From root 'vij' (to tremble) with 'ud' prefix and 'nañ' (a) negation.
  Prefixes: an+ud
  Root: vij (class 6)
• prabodha – awakening, consciousness, knowledge
  noun (masculine)
  Prefix: pra
  Root: budh (class 1)

असौ (asau) - refers to the ultimate reality or pure consciousness (that (one))

(pronoun)

Nominative, masculine, singular of adas

adas - that, yonder

सर्ग-आदौ (sarga-ādau) - at the beginning of creation

(noun)

Locative, masculine, singular of sargādi

sargādi - beginning of creation

Compound type : tatpuruṣa (sarga+ādi)

• sarga – creation, emission
  noun (masculine)
  Root: sṛj (class 6)
• ādi – beginning, origin
  noun (masculine)

चित्तदेहः (cittadehaḥ) - whose body is consciousness/mind

(adjective)

Nominative, masculine, singular of cittadeha

cittadeha - one whose body is mind/consciousness

Compound type : bahuvrīhi (citta+deha)

• citta – mind, consciousness, thought
  noun (neuter)
  Past Passive Participle
  From root cit
  Root: cit (class 1)
• deha – body
  noun (masculine)

आकाश-आत्मा (ākāśa-ātmā) - whose nature/self is space (ātman)

(adjective)

Nominative, masculine, singular of ākāśātman

ākāśātman - whose self is space

Compound type : bahuvrīhi (ākāśa+ātman)

• ākāśa – space, ether
  noun (masculine)
• ātman – self, soul, spirit, essence
  noun (masculine)

महान् (mahān) - great, vast, mighty

(adjective)

Nominative, masculine, singular of mahat

mahat - great, large, mighty

भूत्वा (bhūtvā) - having become, being

(indeclinable)

absolutive

indeclinable participle (ktvā)

Root: bhū (class 1)

वेत्ति (vetti) - knows, understands

(verb)

3rd person , singular, active, present indicative (laṭ) of vid

Root: vid (class 2)

प्रकृतताम् (prakṛtatām) - the state of being material nature, materiality

(noun)

Accusative, feminine, singular of prakṛtatā

prakṛtatā - the state of being material nature (prakṛti), materiality

Derived from prakṛti + tā (suffix for abstract noun)

ततः (tataḥ) - thence, thereupon, from that, afterwards

(indeclinable)