योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-50, verse-42

तदोदेति महामोहः संसृतिभ्रमकारणम् ।
निर्मलाया निरंशायाः संवित्तेश्चामतिर्यदा ॥ ४२ ॥

tadodeti mahāmohaḥ saṃsṛtibhramakāraṇam ,
nirmalāyā niraṃśāyāḥ saṃvitteścāmatiryadā 42

42. tadā udeti mahāmohaḥ saṃsṛtibhramakāraṇam
nirmalāyāḥ niraṃśāyāḥ saṃvitteḥ ca amatiḥ yadā

42. yadā nirmalāyāḥ niraṃśāyāḥ saṃvitteḥ ca amatiḥ
tadā saṃsṛtibhramakāraṇam mahāmohaḥ udeti

42. When there is a lack of understanding (amati) regarding the pure and undivided consciousness (saṃvit), then great delusion (mahāmoha) arises, which is the cause of the illusion of the cycle of birth and death (saṃsāra).

Words meanings summery:

• तदा (tadā) - then, at that time

• उदेति (udeti) - arises, comes forth, appears

• महामोहः (mahāmohaḥ) - great delusion, profound infatuation

• संसृतिभ्रमकारणम् (saṁsṛtibhramakāraṇam) - the cause of the illusion of *saṃsāra* (the cycle of birth and death)

• निर्मलायाः (nirmalāyāḥ) - of the pure, of the spotless

• निरंशायाः (niraṁśāyāḥ) - of the partless, of the undivided

• संवित्तेः (saṁvitteḥ) - of consciousness, of knowledge, of understanding (saṃvit)

• च (ca) - and

• अमतिः (amatiḥ) - non-comprehension, ignorance, lack of understanding

• यदा (yadā) - when

Words meanings and morphology

तदा (tadā) - then, at that time

(indeclinable)

From tad (that) + suffix dā (indicating time).

उदेति (udeti) - arises, comes forth, appears

(verb)

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

Present tense

From ud-√i (to go up).

Prefix: ud

Root: i (class 2)

महामोहः (mahāmohaḥ) - great delusion, profound infatuation

(noun)

Nominative, masculine, singular of mahāmoha

mahāmoha - great delusion, profound infatuation, severe error

Compound of mahā and moha.

Compound type : karmadhāraya (mahā+moha)

• mahā – great, large, mighty
  adjective (masculine)
• moha – delusion, infatuation, confusion, ignorance
  noun (masculine)
  verbal noun
  Derived from root √muh (to be bewildered, confused).
  Root: muh (class 4)

संसृतिभ्रमकारणम् (saṁsṛtibhramakāraṇam) - the cause of the illusion of *saṃsāra* (the cycle of birth and death)

(noun)

Nominative, neuter, singular of saṃsṛtibhramakāraṇa

saṁsṛtibhramakāraṇa - cause of the illusion of *saṃsāra*

A compound noun.

Compound type : tatpuruṣa (saṃsṛti+bhrama+kāraṇa)

• saṃsṛti – cycle of birth and death, *saṃsāra*, transmigration
  noun (feminine)
  verbal noun
  Derived from sam-√sṛ (to flow together, run together).
  Prefix: sam
  Root: sṛ (class 1)
• bhrama – illusion, delusion, error, wandering
  noun (masculine)
  verbal noun
  Derived from root √bhram (to wander, to be confused).
  Root: bhram (class 1)
• kāraṇa – cause, reason, instrument
  noun (neuter)
  verbal noun
  Derived from root √kṛ (to do, make) with suffix ana.
  Root: kṛ (class 8)

Note: Appositional to mahāmohaḥ.

निर्मलायाः (nirmalāyāḥ) - of the pure, of the spotless

(adjective)

Genitive, feminine, singular of nirmalā

nirmala - pure, spotless, clean, unsullied

From nir (without) + mala (impurity).

Note: Qualifies saṃvitteḥ.

निरंशायाः (niraṁśāyāḥ) - of the partless, of the undivided

(adjective)

Genitive, feminine, singular of niraṃśā

niraṁśa - partless, undivided, indivisible

From nir (without) + aṃśa (part).

Note: Qualifies saṃvitteḥ.

संवित्तेः (saṁvitteḥ) - of consciousness, of knowledge, of understanding (saṃvit)

(noun)

Genitive, feminine, singular of saṃvit

saṁvit - consciousness, knowledge, understanding, intelligence

From sam-√vid (to know completely).

Prefix: sam

Root: vid (class 2)

च (ca) - and

(indeclinable)

Note: Positioned after the word it connects to.

अमतिः (amatiḥ) - non-comprehension, ignorance, lack of understanding

(noun)

Nominative, feminine, singular of amati

amati - non-understanding, ignorance, stupidity, lack of intelligence

From a- (negation) + mati (mind, understanding).

Compound type : nañ-tatpuruṣa (a+mati)

• a – not, non-
  indeclinable
  Negative prefix.
• mati – mind, intelligence, understanding, thought
  noun (feminine)
  verbal noun
  Derived from root √man (to think).
  Root: man (class 4)

यदा (yadā) - when

(indeclinable)

From yad (which) + suffix dā (indicating time).