योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-17, verse-31

द्वैतं न संभवति चित्तमयं महात्मन्नात्मन्यथैक्यमपि न द्वितयोदितात्म ।
अद्वैतमैक्यरहितं सततोदितं सत्सर्वं न किंचिदपि चाहुरतः स्वरूपम् ॥ ३१ ॥

dvaitaṃ na saṃbhavati cittamayaṃ mahātmannātmanyathaikyamapi na dvitayoditātma ,
advaitamaikyarahitaṃ satatoditaṃ satsarvaṃ na kiṃcidapi cāhurataḥ svarūpam 31

31. dvaitam na saṃbhavati cittamayam mahātman
ātmani atha aikyam api na dvitaya-udita-ātman
advaitam aikya-rahitam satata-uditam
sat sarvam na kiṃcid api ca āhuḥ ataḥ svarūpam

31. mahātman,
cittamayam dvaitam ātmani na saṃbhavati.
atha dvitaya-udita-ātman-i aikyam api na.
aikya-rahitam satata-uditam sat advaitam [asti].
[jñāninaḥ] ataḥ svarūpam sarvam ca na kiṃcid api āhuḥ.

31. O great soul (mahātman), duality (dvaita), being a construct of the mind, is not possible within the Self (ātman). Similarly, even the concept of oneness (aikya) is not applicable to the Self (ātman) which has transcended the dual. Non-duality (advaita) is that which is devoid of the concept of oneness, eternally manifest, and truly existent. Therefore, they say that this true nature (svarūpam) is everything and yet nothing at all.

Words meanings summery:

• द्वैतम् (dvaitam) - duality, dualism

• न (na) - not, no

• संभवति (saṁbhavati) - is possible, originates, occurs

• चित्तमयम् (cittamayam) - consisting of mind, born of mind, mental

• महात्मन् (mahātman) - O great soul

• आत्मनि (ātmani) - in the Self, in the soul

• अथ (atha) - then, now, moreover, furthermore

• ऐक्यम् (aikyam) - oneness, unity, identity

• अपि (api) - also, even, too

• न (na) - not, no

• द्वितय-उदित-आत्मन् (dvitaya-udita-ātman) - Self that has transcended the dual, Self spoken of as beyond two

• अद्वैतम् (advaitam) - non-duality, monism

• ऐक्य-रहितम् (aikya-rahitam) - devoid of oneness, without unity

• सतत-उदितम् (satata-uditam) - eternally manifest, always arisen

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

• सर्वम् (sarvam) - all, whole, every

• न (na) - not, no

• किंचिद् (kiṁcid) - anything, something

• अपि (api) - also, even, too

• च (ca) - and, also

• आहुः (āhuḥ) - they say, they declare

• अतः (ataḥ) - therefore, hence, from this

• स्वरूपम् (svarūpam) - true nature, essential form, one's own form

Words meanings and morphology

द्वैतम् (dvaitam) - duality, dualism

(noun)

Nominative, neuter, singular of dvaita

dvaita - duality, dualism, the state of being two

न (na) - not, no

(indeclinable)

संभवति (saṁbhavati) - is possible, originates, occurs

(verb)

3rd person , singular, active, present (lat) of saṃbhav

present active, third person singular

Prefix: sam

Root: bhū (class 1)

चित्तमयम् (cittamayam) - consisting of mind, born of mind, mental

(adjective)

Nominative, neuter, singular of cittamaya

cittamaya - consisting of mind, made of mind, mental

derived from citta + maya (made of)

महात्मन् (mahātman) - O great soul

(noun)

Vocative, masculine, singular of mahātman

mahātman - great-souled, noble, a great person

Compound type : bahuvrihi (mahā+ātman)

• mahā – great, large
  adjective (feminine)
• ātman – Self, soul, essence, breath
  noun (masculine)
  Root: an (class 2)

आत्मनि (ātmani) - in the Self, in the soul

(noun)

Locative, masculine, singular of ātman

ātman - Self, soul, essence, breath

Root: an (class 2)

अथ (atha) - then, now, moreover, furthermore

(indeclinable)

ऐक्यम् (aikyam) - oneness, unity, identity

(noun)

Nominative, neuter, singular of aikya

aikya - oneness, unity, identity, sameness

from eka (one)

अपि (api) - also, even, too

(indeclinable)

न (na) - not, no

(indeclinable)

द्वितय-उदित-आत्मन् (dvitaya-udita-ātman) - Self that has transcended the dual, Self spoken of as beyond two

(noun)

Locative, masculine, singular of dvitayoditātman

dvitayoditātman - Self that has transcended the dual, Self spoken of as beyond two, Self free from duality

Compound type : bahuvrihi (dvitaya+udita+ātman)

• dvitaya – dual, two-fold
  adjective (neuter)
• udita – risen, appeared, spoken of, transcended
  adjective (neuter)
  Past Passive Participle
  from root 'iṅ' with 'ud'
  Prefix: ud
  Root: iṅ (class 2)
• ātman – Self, soul, essence
  noun (masculine)
  Root: an (class 2)

Note: Locative case, matching ātmani

अद्वैतम् (advaitam) - non-duality, monism

(noun)

Nominative, neuter, singular of advaita

advaita - non-duality, monism, having no second

compound of a (not) + dvaita (duality)

ऐक्य-रहितम् (aikya-rahitam) - devoid of oneness, without unity

(adjective)

Nominative, neuter, singular of aikyarahita

aikyarahita - devoid of oneness, without unity

Compound type : tatpurusha (aikya+rahita)

• aikya – oneness, unity
  noun (neuter)
• rahita – devoid of, without, abandoned
  adjective (neuter)
  Past Passive Participle
  from root rah (to abandon)
  Root: rah (class 1)

सतत-उदितम् (satata-uditam) - eternally manifest, always arisen

(adjective)

Nominative, neuter, singular of satatodita

satatodita - eternally manifest, always arisen, constantly produced

Compound type : tatpurusha (satata+udita)

• satata – constant, continuous, eternal
  adjective (neuter)
• udita – risen, appeared, manifest
  adjective (neuter)
  Past Passive Participle
  from root 'iṅ' with 'ud'
  Prefix: ud
  Root: iṅ (class 2)

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

(adjective)

Nominative, neuter, singular of sat

sat - existent, real, true, good, being

Present Active Participle

from root as (to be)

Root: as (class 2)

सर्वम् (sarvam) - all, whole, every

(pronoun)

Nominative, neuter, singular of sarva

sarva - all, whole, every, entire

न (na) - not, no

(indeclinable)

किंचिद् (kiṁcid) - anything, something

(pronoun)

Nominative, neuter, singular of kiṃcit

kiṁcit - anything, something, somewhat

अपि (api) - also, even, too

(indeclinable)

च (ca) - and, also

(indeclinable)

आहुः (āhuḥ) - they say, they declare

(verb)

3rd person , plural, active, perfect (lit) of āhuḥ

perfect active, third person plural (or aorist in some contexts)

Root: ah (class 2)

अतः (ataḥ) - therefore, hence, from this

(indeclinable)

स्वरूपम् (svarūpam) - true nature, essential form, one's own form

(noun)

Nominative, neuter, singular of svarūpa

svarūpa - true nature, essential form, one's own form, inherent nature

Compound type : tatpurusha (sva+rūpa)

• sva – own, self
  pronoun (neuter)
• rūpa – form, shape, appearance, nature
  noun (neuter)