योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-40, verse-6

मनःसंकल्पमात्रेण गन्धर्वपुरवत्क्षणात् ।
तनोतीदमसद्दृश्यं ब्राह्मीं स्थितिमिव त्यजत् ॥ ६ ॥

manaḥsaṃkalpamātreṇa gandharvapuravatkṣaṇāt ,
tanotīdamasaddṛśyaṃ brāhmīṃ sthitimiva tyajat 6

6. manaḥsaṅkalpamātreṇa gandharvapuravat kṣaṇāt
tanoti idam asat dṛśyam brāhmīm sthitim iva tyajat

6. manaḥsaṅkalpamātreṇa,
gandharvapuravat,
kṣaṇāt,
brāhmīm sthitim iva tyajat,
idam asat dṛśyam tanoti

6. Merely by the mind's conception (saṅkalpa), this unreal appearance (asad dṛśyam) manifests instantly, like a city of Gandharvas, as if abandoning the state of Brahman (brahman).

Words meanings summery:

• मनःसङ्कल्पमात्रेण (manaḥsaṅkalpamātreṇa) - merely by the mind's resolve or conception (by merely the mind's resolve, by mere mental conception)

• गन्धर्वपुरवत् (gandharvapuravat) - like an illusory city (of Gandharvas) (like a city of Gandharvas)

• क्षणात् (kṣaṇāt) - instantly (instantly, in a moment)

• तनोति (tanoti) - manifests, creates (spreads, extends, manifests, creates)

• इदम् (idam) - this (unreal appearance) (this)

• असत् (asat) - unreal, non-existent (non-existent, unreal, false)

• दृश्यम् (dṛśyam) - appearance, visible phenomenon (visible object, appearance, phenomenon)

• ब्राह्मीम् (brāhmīm) - the state related to Brahman (brahman) (related to Brahman, divine)

• स्थितिम् (sthitim) - state, condition (state, condition, existence, position)

• इव (iva) - as if (as, like, as if)

• त्यजत् (tyajat) - abandoning (abandoning, forsaking, leaving)

Words meanings and morphology

मनःसङ्कल्पमात्रेण (manaḥsaṅkalpamātreṇa) - merely by the mind's resolve or conception (by merely the mind's resolve, by mere mental conception)

(noun)

Instrumental, neuter, singular of manaḥsaṅkalpamātra

manaḥsaṅkalpamātra - merely a mental resolve, only by the mind's conception

Compound of manas (mind), saṅkalpa (resolve, conception), and mātra (mere, only)

Compound type : tatpurusha (manas+saṅkalpa+mātra)

• manas – mind, intellect, consciousness
  noun (neuter)
  Root: man
• saṅkalpa – resolve, intention, conception, will, desire
  noun (masculine)
  Derived from root kḷp with prefix sam
  Prefix: sam
  Root: kḷp (class 1)
• mātra – mere, only, measure, quantity
  adjective (neuter)

गन्धर्वपुरवत् (gandharvapuravat) - like an illusory city (of Gandharvas) (like a city of Gandharvas)

(indeclinable)

Derived from gandharvapura with vat suffix (like, similar to)

Compound type : tatpurusha (gandharvapura)

• gandharva – a celestial musician, a demi-god
  noun (masculine)
• pura – city, town, stronghold
  noun (neuter)
• vat – like, as, similar to
  indeclinable
  Suffix indicating similarity.

Note: Adverbial suffix.

क्षणात् (kṣaṇāt) - instantly (instantly, in a moment)

(noun)

Ablative, masculine, singular of kṣaṇa

kṣaṇa - moment, instant, leisure

Note: Used adverbially.

तनोति (tanoti) - manifests, creates (spreads, extends, manifests, creates)

(verb)

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

present active

Root verb tan

Root: tan (class 8)

इदम् (idam) - this (unreal appearance) (this)

(pronoun)

neuter, singular of idam

idam - this

Demonstrative pronoun.

असत् (asat) - unreal, non-existent (non-existent, unreal, false)

(adjective)

neuter, singular of asat

asat - non-existent, unreal, false, bad

Present active participle of as (to be) + a prefix (negative)

Negative prefix a + present participle of as (to be)

Prefix: a

Root: as (class 2)

Note: Functions as an adjective here, qualifying dṛśyam.

दृश्यम् (dṛśyam) - appearance, visible phenomenon (visible object, appearance, phenomenon)

(noun)

neuter, singular of dṛśya

dṛśya - visible, to be seen, object of sight, appearance

Gerundive / Future Passive Participle

Derived from root dṛś (to see) with suffix ya

Root: dṛś (class 1)

ब्राह्मीम् (brāhmīm) - the state related to Brahman (brahman) (related to Brahman, divine)

(adjective)

Accusative, feminine, singular of brāhmī

brahman - the Absolute reality, the ultimate principle of the universe (brahman)

Adjective derived from brahman

स्थितिम् (sthitim) - state, condition (state, condition, existence, position)

(noun)

Accusative, feminine, singular of sthiti

sthiti - standing, staying, state, condition, existence, firm position

Derived from root sthā (to stand)

Root: sthā (class 1)

इव (iva) - as if (as, like, as if)

(indeclinable)

Particle.

त्यजत् (tyajat) - abandoning (abandoning, forsaking, leaving)

(adjective)

Nominative, neuter, singular of tyaj

tyaj - to abandon, forsake, leave, give up

Present active participle

Derived from root tyaj with śatṛ suffix

Root: tyaj (class 1)

Note: Present active participle, here used adjectivally to describe the action of the implied subject (mind).