योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-73, verse-12

असत्यामेव तामन्तर्भावयन्स्वप्नवत्स्वतः ।
ततः स ब्रह्मशब्दार्थं वेत्ति चिद्रूपतां तताम् ॥ १२ ॥

asatyāmeva tāmantarbhāvayansvapnavatsvataḥ ,
tataḥ sa brahmaśabdārthaṃ vetti cidrūpatāṃ tatām 12

12. asatyām eva tām antar bhāvayan svapnavat svataḥ |
tataḥ sa brahmaśabdārtham vetti cidrūpatām tatām ||

12. sa svataḥ svapnavat asatyām eva tām antar bhāvayan,
tataḥ brahmaśabdārtham tatām cidrūpatām vetti

12. Perceiving that unreal (world) spontaneously within himself, just like a dream, he then comprehends the meaning of the word 'Brahman' as the pervasive nature of consciousness.

Words meanings summery:

• असत्याम् (asatyām) - unreal, false, non-existent

• एव (eva) - only, just, indeed, precisely

• ताम् (tām) - that, her, it

• अन्तर् (antar) - within, inside, in the middle

• भावयन् (bhāvayan) - causing to be, imagining, meditating upon, perceiving

• स्वप्नवत् (svapnavat) - like a dream, as if in a dream

• स्वतः (svataḥ) - spontaneously, by itself, naturally

• ततः (tataḥ) - then, thence, afterwards

• स (sa) - he, that (masculine nominative singular)

• ब्रह्मशब्दार्थम् (brahmaśabdārtham) - the meaning of the word Brahman

• वेत्ति (vetti) - knows, understands

• चिद्रूपताम् (cidrūpatām) - the nature of consciousness, the form of consciousness

• तताम् (tatām) - pervasive, extended, spread

Words meanings and morphology

असत्याम् (asatyām) - unreal, false, non-existent

(adjective)

Accusative, feminine, singular of asatya

asatya - unreal, false, untrue, non-existent

Derived from 'a-' (negation) + 'satya' (true, real).

Compound type : nañ-tatpuruṣa (a+satya)

• a – not, non-, un- (negation prefix)
  indeclinable
• satya – true, real, existent
  adjective
  Root: as (class 2)

Note: Refers to 'tām' (the unreal world/existence).

एव (eva) - only, just, indeed, precisely

(indeclinable)

Emphatic particle.

ताम् (tām) - that, her, it

(pronoun)

Accusative, feminine, singular of tad

tad - that, it, she, he

Demonstrative pronoun.

Note: Refers to an implied 'world' or 'existence' that is 'asatyām'.

अन्तर् (antar) - within, inside, in the middle

(indeclinable)

Adverbial.

Note: Implies 'within himself' or 'internally'.

भावयन् (bhāvayan) - causing to be, imagining, meditating upon, perceiving

(participle)

Nominative, masculine, singular of bhāvayat

bhāvayat - causing to be, producing, conceiving, imagining, contemplating, realizing

Present Active Participle (Causative)

From root 'bhū' (to be) in causative ('bhāvayati') + 'śatṛ' suffix.

Root: bhū (class 1)

Note: Implies the agent 'sa' (he) performing this action.

स्वप्नवत् (svapnavat) - like a dream, as if in a dream

(indeclinable)

Derived from 'svapna' (dream) + 'vat' (like).

स्वतः (svataḥ) - spontaneously, by itself, naturally

(indeclinable)

Adverbial suffix 'tas' from 'sva' (self).

ततः (tataḥ) - then, thence, afterwards

(indeclinable)

Adverbial suffix 'tas' from 'tad' (that).

Note: Connects the two clauses.

स (sa) - he, that (masculine nominative singular)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

Demonstrative pronoun.

Note: The agent of 'bhāvayan' and 'vetti'.

ब्रह्मशब्दार्थम् (brahmaśabdārtham) - the meaning of the word Brahman

(noun)

Accusative, masculine, singular of brahmaśabdārtha

brahmaśabdārtha - the meaning of the word Brahman

Compound type : tatpuruṣa (brahman+śabda+artha)

• brahman – Brahman (the Absolute reality), prayer, sacred word, Veda
  noun (neuter)
  Root: bṛh
• śabda – word, sound, speech
  noun (masculine)
  Root: śabd (class 10)
• artha – meaning, purpose, object, wealth
  noun (masculine)
  Root: arth (class 10)

Note: Object of 'vetti'.

वेत्ति (vetti) - knows, understands

(verb)

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

Root 'vid' (class 2 'vid-ā-di').

Root: vid (class 2)

चिद्रूपताम् (cidrūpatām) - the nature of consciousness, the form of consciousness

(noun)

Accusative, feminine, singular of cidrūpatā

cidrūpatā - the state or nature of consciousness, pure consciousness

Compound type : tatpuruṣa (cit+rūpa+tā)

• cit – consciousness, pure thought, spirit
  noun (feminine)
  Root: cit (class 1)
• rūpa – form, nature, appearance, beauty
  noun (neuter)
  Root: rūp (class 10)
• tā – suffix for abstract noun forming, -ness, -hood
  suffix (feminine)
  Often added to adjectives or nouns to form feminine abstract nouns.

Note: Object of 'vetti'.

तताम् (tatām) - pervasive, extended, spread

(adjective)

Accusative, feminine, singular of tata

tata - extended, spread out, pervasive, vast

Past Passive Participle

From root 'tan' (to stretch, extend).

Root: tan (class 8)

Note: Modifies 'cidrūpatām'.