योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-1, verse-1

वाग्भाभिर्ब्रह्मविद्ब्रह्म भाति स्वप्न इवात्मनि ।
यदिदंतत्स्वशब्दोत्थैर्यो यद्वेत्ति स वेत्ति तत् ॥ १ ॥

vāgbhābhirbrahmavidbrahma bhāti svapna ivātmani ,
yadidaṃtatsvaśabdotthairyo yadvetti sa vetti tat 1

1. vāk-bhābhiḥ brahma-vit brahma bhāti svapne iva ātmani yat
idam tat sva-śabda-utthaiḥ yaḥ yat vetti saḥ vetti tat

1. vāk-bhābhiḥ brahma-vit brahma ātmani svapne iva bhāti.
yaḥ yat idam tat sva-śabda-utthaiḥ vetti,
saḥ tat vetti.

1. The knower of Brahman (brahmavit), through expressions of speech, perceives Brahman (brahman) in the self (ātman) as if in a dream. Whoever comprehends what 'this' (the manifest) and 'that' (the transcendent) truly signify, through words describing their intrinsic nature, he indeed knows that ultimate truth.

Words meanings summery:

• वाक्-भाभिः (vāk-bhābhiḥ) - by the splendors of speech, by the light of words, by eloquent expressions

• ब्रह्म-वित् (brahma-vit) - one who has realized Brahman (brahman) (knower of Brahman)

• ब्रह्म (brahma) - Brahman, the Absolute Reality

• भाति (bhāti) - shines, appears, manifests

• स्वप्ने (svapne) - in a dream

• इव (iva) - like, as, as if

• आत्मनि (ātmani) - in the Self (ātman), in oneself

• यत् (yat) - which, that which

• इदम् (idam) - this

• तत् (tat) - that

• स्व-शब्द-उत्थैः (sva-śabda-utthaiḥ) - by words arising from their own nature, by expressions inherent to them

• यः (yaḥ) - who, whoever

• यत् (yat) - what, which

• वेत्ति (vetti) - knows, understands

• सः (saḥ) - he, that one

• वेत्ति (vetti) - knows, understands

• तत् (tat) - the ultimate truth (that, that truth)

Words meanings and morphology

वाक्-भाभिः (vāk-bhābhiḥ) - by the splendors of speech, by the light of words, by eloquent expressions

(noun)

Instrumental, feminine, plural of vāk-bhā

vāk-bhā - splendor of speech, eloquent expression

Compound type : tatpurusha (vāc+bhā)

• vāc – speech, voice, word
  noun (feminine)
  Root: vac (class 2)
• bhā – light, splendor, radiance
  noun (feminine)
  Root: bhā (class 2)

ब्रह्म-वित् (brahma-vit) - one who has realized Brahman (brahman) (knower of Brahman)

(noun)

Nominative, masculine, singular of brahma-vid

brahma-vid - knower of Brahman

Derived from `brahman` + `vid` (knower, from root `vid`).

Compound type : tatpurusha (brahman+vid)

• brahman – Brahman, the Absolute Reality, the ultimate truth
  noun (neuter)
• vid – knower, learned
  adjective (masculine)
  Derived from root vid (to know).
  Root: vid (class 2)

ब्रह्म (brahma) - Brahman, the Absolute Reality

(noun)

Nominative, neuter, singular of brahman

brahman - Brahman, the Absolute Reality, the ultimate truth

Root: bṛh (class 1)

Note: Appears to be in apposition to `brahmavit`, implying 'is Brahman'.

भाति (bhāti) - shines, appears, manifests

(verb)

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

Present indicative, third person singular.

Root: bhā (class 2)

स्वप्ने (svapne) - in a dream

(noun)

Locative, masculine, singular of svapna

svapna - sleep, dream

Root: svap (class 1)

Note: This is locative singular of `svapna`. `svapne iva` implies "as in a dream."

इव (iva) - like, as, as if

(indeclinable)

Particle of comparison.

आत्मनि (ātmani) - in the Self (ātman), in oneself

(noun)

Locative, masculine, singular of ātman

ātman - Self, soul, spirit, essence, ego, individual soul

Root: an (class 2)

यत् (yat) - which, that which

(pronoun)

Nominative, neuter, singular of yad

yad - which, what (relative pronoun)

Note: Acts as a correlative or part of the object phrase.

इदम् (idam) - this

(pronoun)

Nominative, neuter, singular of idam

idam - this (demonstrative pronoun)

Note: Refers to the manifest world.

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that (demonstrative pronoun)

Note: Refers to the transcendent.

स्व-शब्द-उत्थैः (sva-śabda-utthaiḥ) - by words arising from their own nature, by expressions inherent to them

(adjective)

Instrumental, masculine, plural of sva-śabda-uttha

sva-śabda-uttha - arising from its own word/term, inherent in its own nature

Compound type : tatpurusha (sva+śabda+uttha)

• sva – own, self
  pronoun
• śabda – word, sound, expression
  noun (masculine)
• uttha – arising, originating from
  adjective (masculine)
  Derived from root sthā (to stand) with prefix ud.
  Prefix: ud
  Root: sthā (class 1)

Note: Refers to the means of knowing, i.e., authentic descriptions or direct apprehension through realization.

यः (yaḥ) - who, whoever

(pronoun)

Nominative, masculine, singular of yad

yad - who, which (relative pronoun)

Note: Subject of the second sentence.

यत् (yat) - what, which

(pronoun)

Accusative, neuter, singular of yad

yad - which, what (relative pronoun)

Note: Object of `vetti` in the relative clause.

वेत्ति (vetti) - knows, understands

(verb)

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

Present indicative, third person singular.

Root: vid (class 2)

सः (saḥ) - he, that one

(pronoun)

Nominative, masculine, singular of tad

tad - he, that (demonstrative pronoun)

Note: Correlative to `yaḥ`.

वेत्ति (vetti) - knows, understands

(verb)

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

Present indicative, third person singular.

Root: vid (class 2)

तत् (tat) - the ultimate truth (that, that truth)

(pronoun)

Accusative, neuter, singular of tad

tad - that (demonstrative pronoun)

Note: Object of `vetti` in the main clause, refers to the ultimate truth.