योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-100, verse-41

कल्पनाया अवस्तुत्वं संप्रबुद्धमतिं प्रति ।
रज्ज्वहेरिव हे प्राज्ञ तत्त्वबुद्धमतिं प्रति ॥ ४१ ॥

kalpanāyā avastutvaṃ saṃprabuddhamatiṃ prati ,
rajjvaheriva he prājña tattvabuddhamatiṃ prati 41

41. kalpanāyāḥ avastutvam samprabuddhamatim prati
rajjau aheḥ iva he prājña tattvabuddhamatim prati

41. he prājña samprabuddhamatim prati kalpanāyāḥ
avastutvam tattvabuddhamatim prati rajjau aheḥ iva

41. O wise one, for a mind that is fully awakened, the unreality of imagination (kalpanā) becomes apparent, just as the unreality of a snake superimposed on a rope is clear to a mind that has comprehended the truth (tattva).

Words meanings summery:

• कल्पनायाः (kalpanāyāḥ) - of imagination, of a mental construct

• अवस्तुत्वम् (avastutvam) - unreality, non-existence, absence of substance

• सम्प्रबुद्धमतिम् (samprabuddhamatim) - for one with a fully awakened intellect

• प्रति (prati) - towards, to, for, regarding

• रज्जौ (rajjau) - in a rope, on a rope

• अहेः (aheḥ) - of a snake

• इव (iva) - like, as, as if

• हे (he) - O (vocative particle)

• प्राज्ञ (prājña) - O wise one, O knowing one

• तत्त्वबुद्धमतिम् (tattvabuddhamatim) - for one whose intellect has grasped the truth/reality

Words meanings and morphology

कल्पनायाः (kalpanāyāḥ) - of imagination, of a mental construct

(noun)

Genitive, feminine, singular of kalpanā

kalpanā - imagination, fancy, fiction, mental creation, assumption

Root: kḷp (class 1)

अवस्तुत्वम् (avastutvam) - unreality, non-existence, absence of substance

(noun)

Nominative, neuter, singular of avastutva

avastutva - unreality, non-existence, non-substantiality

Compound type : tatpurusha (a+vastu+tva)

• a – not, non-
  indeclinable
  negative prefix
• vastu – thing, object, substance, reality
  noun (neuter)
• tva – suffix forming abstract nouns, -ness, -hood
  indeclinable
  primary suffix

सम्प्रबुद्धमतिम् (samprabuddhamatim) - for one with a fully awakened intellect

(adjective)

Accusative, feminine, singular of samprabuddhamati

samprabuddhamati - one whose intellect is fully awakened/enlightened

Compound type : bahuvrihi (sam+pra+buddha+mati)

• sam – together, completely, perfectly
  indeclinable
  prefix
• pra – forward, onward, forth, fully
  indeclinable
  prefix
• buddha – awakened, enlightened, known, perceived
  adjective (masculine)
  Past Passive Participle
  from root budh (to awaken, perceive)
  Root: budh (class 1)
• mati – mind, intellect, thought, understanding
  noun (feminine)
  Root: man

प्रति (prati) - towards, to, for, regarding

(indeclinable)

रज्जौ (rajjau) - in a rope, on a rope

(noun)

Locative, feminine, singular of rajju

rajju - rope, cord

अहेः (aheḥ) - of a snake

(noun)

Genitive, masculine, singular of ahi

ahi - snake, serpent

इव (iva) - like, as, as if

(indeclinable)

हे (he) - O (vocative particle)

(indeclinable)

प्राज्ञ (prājña) - O wise one, O knowing one

(adjective)

Vocative, masculine, singular of prājña

prājña - wise, knowing, intelligent; a wise person, knower

derived from prajñā (wisdom) + aṇ

Prefix: pra

Root: jñā (class 9)

तत्त्वबुद्धमतिम् (tattvabuddhamatim) - for one whose intellect has grasped the truth/reality

(adjective)

Accusative, feminine, singular of tattvabuddhamati

tattvabuddhamati - one whose intellect has comprehended the truth (tattva)

Compound type : bahuvrihi (tattva+buddha+mati)

• tattva – truth, reality, principle, essence
  noun (neuter)
• buddha – awakened, enlightened, known, perceived
  adjective (masculine)
  Past Passive Participle
  from root budh (to awaken, perceive)
  Root: budh (class 1)
• mati – mind, intellect, thought, understanding
  noun (feminine)
  Root: man