योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-42, verse-16

विश्वविश्वेश्वरद्वित्वं तथैवासन्मयात्मकम् ।
सदेवासंभवद्द्वित्वं महाचिन्मात्रकं च यत् ॥ १६ ॥

viśvaviśveśvaradvitvaṃ tathaivāsanmayātmakam ,
sadevāsaṃbhavaddvitvaṃ mahācinmātrakaṃ ca yat 16

16. viśvaviśveśvaradvitvam tathā eva asatmayātmakam
sat eva asambhvat dvitvam mahācinmātrakam ca yat

16. tathā eva viśvaviśveśvaradvitvam asatmayātmakam
ca yat dvitvam sat eva asambhvat mahācinmātrakam

16. Similarly, the duality between the universe (viśvam) and the Lord of the universe (viśveśvara) is by nature unreal and illusory. And that duality, being truly impossible, is actually merely the Great Consciousness (mahācit).

Words meanings summery:

• विश्वविश्वेश्वरद्वित्वम् (viśvaviśveśvaradvitvam) - the duality between the universe (viśvam) and the Lord of the universe (viśveśvara) (the duality of the universe and the Lord of the universe)

• तथा (tathā) - similarly (thus, in that manner, similarly)

• एव (eva) - indeed (only, merely, indeed, certainly)

• असत्मयात्मकम् (asatmayātmakam) - by nature unreal and illusory (of the nature of unreality, illusory, non-existent by nature)

• सत् (sat) - truly (existent, real, true, good, being)

• एव (eva) - indeed (only, merely, indeed, certainly)

• असम्भ्वत् (asambhvat) - truly impossible (impossible, not occurring, not feasible)

• द्वित्वम् (dvitvam) - duality (duality, twoness, pair)

• महाचिन्मात्रकम् (mahācinmātrakam) - merely the Great Consciousness (mahācit) (merely the Great Consciousness, consisting only of Great Consciousness)

• च (ca) - and (and, also, moreover)

• यत् (yat) - which (which, what, that)

Words meanings and morphology

विश्वविश्वेश्वरद्वित्वम् (viśvaviśveśvaradvitvam) - the duality between the universe (viśvam) and the Lord of the universe (viśveśvara) (the duality of the universe and the Lord of the universe)

(noun)

Nominative, neuter, singular of viśvaviśveśvaradvitva

viśvaviśveśvaradvitva - duality of the universe and its lord

Compound type : dvandva-tatpuruṣa (viśva+viśveśvara+dvitva)

• viśva – universe, all
  noun (neuter)
• viśveśvara – Lord of the universe
  noun (masculine)
  viśva (universe) + īśvara (lord)
  Root: īś (class 2)
• dvitva – duality, twoness
  noun (neuter)
  dvi (two) + tva (abstract suffix)

तथा (tathā) - similarly (thus, in that manner, similarly)

(indeclinable)

एव (eva) - indeed (only, merely, indeed, certainly)

(indeclinable)

असत्मयात्मकम् (asatmayātmakam) - by nature unreal and illusory (of the nature of unreality, illusory, non-existent by nature)

(adjective)

Nominative, neuter, singular of asatmayātmaka

asatmayātmaka - having the nature of being made of unreality, illusory by nature

asat (non-existent) + maya (made of) + ātmaka (of the nature of)

Compound type : tatpuruṣa (asat+maya+ātmaka)

• asat – non-existent, unreal, false
  adjective
  a (negation) + sat (existent)
  Root: as (class 2)
• maya – made of, consisting of, full of
  suffix/adjective
  mayaṭ suffix forming an adjective from a noun
• ātmaka – having the nature of, consisting of
  adjective
  ātman + ka suffix

सत् (sat) - truly (existent, real, true, good, being)

(adjective)

Nominative, neuter, singular of sat

sat - existent, real, true

present active participle

From root as (to be) + śatṛ suffix

Root: as (class 2)

एव (eva) - indeed (only, merely, indeed, certainly)

(indeclinable)

असम्भ्वत् (asambhvat) - truly impossible (impossible, not occurring, not feasible)

(adjective)

Nominative, neuter, singular of asambhvat

asambhvat - impossible, not occurring

present active participle

a (negation) + sam + bhū + śatṛ

Compound type : nañ-tatpuruṣa (a+sambhvat)

• a – not, non-
  indeclinable
  negation prefix
• sambhvat – possible, occurring
  adjective (present participle)
  present active participle
  sam (prefix) + bhū (to be) + śatṛ suffix
  Prefix: sam
  Root: bhū (class 1)

द्वित्वम् (dvitvam) - duality (duality, twoness, pair)

(noun)

Nominative, neuter, singular of dvitva

dvitva - duality, twoness

dvi (two) + tva (abstract suffix)

महाचिन्मात्रकम् (mahācinmātrakam) - merely the Great Consciousness (mahācit) (merely the Great Consciousness, consisting only of Great Consciousness)

(noun)

Nominative, neuter, singular of mahācinmātraka

mahācinmātraka - merely the Great Consciousness, consisting only of Great Consciousness

mahācit (Great Consciousness) + mātraka (only, merely)

Compound type : karmadhāraya (mahācit+mātraka)

• mahācit – great consciousness, supreme consciousness
  noun (feminine)
  mahā (great) + cit (consciousness)
  Root: cit (class 1)
• mātraka – merely, only, consisting of only
  adjective/suffix
  matra (measure) + ka (suffix)

च (ca) - and (and, also, moreover)

(indeclinable)

Conjunction

यत् (yat) - which (which, what, that)

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that (relative pronoun)

Relative pronoun