योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-49, verse-18

येन बोधात्मना बुद्धं स ज्ञ इत्यभिधीयते ।
अद्वैतस्योपशान्तस्य तस्य विश्वं न विद्यते ॥ १८ ॥

yena bodhātmanā buddhaṃ sa jña ityabhidhīyate ,
advaitasyopaśāntasya tasya viśvaṃ na vidyate 18

18. yena bodha-ātmanā buddham saḥ jñaḥ iti abhidhīyate
advaitasya upaśāntasya tasya viśvam na vidyate

18. yena bodha-ātmanā buddham saḥ jñaḥ iti abhidhīyate
tasya advaitasya upaśāntasya viśvam na vidyate

18. The one by whom the ultimate reality is understood through the nature of pure consciousness (bodha-ātman), that person is called a knower (jña). For such a one, who is non-dual (advaita) and perfectly tranquil (upaśānta), the world (viśva) as a separate reality does not exist.

Words meanings summery:

• येन (yena) - by whom, by which

• बोध-आत्मना (bodha-ātmanā) - by the nature of consciousness, by the conscious self (ātman)

• बुद्धम् (buddham) - understood (as ultimate reality) (understood, known, perceived, awakened)

• सः (saḥ) - he, that

• ज्ञः (jñaḥ) - knower, wise one, intelligent person

• इति (iti) - thus, so, in this manner, ' '

• अभिधीयते (abhidhīyate) - is called, is named, is designated

• अद्वैतस्य (advaitasya) - of the non-dual, of non-duality

• उपशान्तस्य (upaśāntasya) - of the tranquil, of the perfectly peaceful, of the quieted

• तस्य (tasya) - of him, of that

• विश्वम् (viśvam) - the world, the universe, all

• न (na) - not, no

• विद्यते (vidyate) - exists, is found, is present

Words meanings and morphology

येन (yena) - by whom, by which

(pronoun)

Instrumental, masculine, singular of yad

yad - which, who, what

बोध-आत्मना (bodha-ātmanā) - by the nature of consciousness, by the conscious self (ātman)

(noun)

Instrumental, masculine, singular of bodha-ātman

bodha-ātman - the self of consciousness, conscious essence

Compound type : tatpuruṣa (bodha+ātman)

• bodha – consciousness, knowledge, awakening, perception
  noun (masculine)
  From root budh (to know, perceive)
  Root: budh
• ātman – self, soul, spirit, essence, breath
  noun (masculine)

बुद्धम् (buddham) - understood (as ultimate reality) (understood, known, perceived, awakened)

(adjective)

Nominative, neuter, singular of buddha

buddha - known, understood, awakened, enlightened

Past Passive Participle

From root budh (to know, perceive)

Root: budh (class 1)

Note: Refers to the object that is understood, implied.

सः (saḥ) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

ज्ञः (jñaḥ) - knower, wise one, intelligent person

(noun)

Nominative, masculine, singular of jña

jña - knowing, knower, wise, intelligent

From root jñā (to know) + a suffix

Root: jñā (class 9)

इति (iti) - thus, so, in this manner, ' '

(indeclinable)

अभिधीयते (abhidhīyate) - is called, is named, is designated

(verb)

3rd person , singular, passive, present indicative (laṭ) of abhidhī

root

Prefix: abhi

Root: dhā (class 3)

अद्वैतस्य (advaitasya) - of the non-dual, of non-duality

(adjective)

Genitive, masculine, singular of advaita

advaita - non-dual, non-duality, oneness

Compound type : nañ-tatpuruṣa (a+dvaita)

• a – not, non-, un-
  indeclinable
• dvaita – duality, twoness
  noun (neuter)
  From dvi (two)

Note: Agrees with tasya.

उपशान्तस्य (upaśāntasya) - of the tranquil, of the perfectly peaceful, of the quieted

(adjective)

Genitive, masculine, singular of upaśānta

upaśānta - tranquil, calm, pacified, perfectly peaceful

Past Passive Participle

From upa-śam (to be calm, to cease)

Prefix: upa

Root: śam (class 4)

Note: Agrees with tasya.

तस्य (tasya) - of him, of that

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

विश्वम् (viśvam) - the world, the universe, all

(noun)

Nominative, neuter, singular of viśva

viśva - all, every, the whole, the universe, the world

न (na) - not, no

(indeclinable)

विद्यते (vidyate) - exists, is found, is present

(verb)

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

root

Root: vid (class 4)