योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-21, verse-71

अविचारो विचारेण निमेषादेव नश्यति ।
एषा सत्तैव तेनान्तरविद्यैषा न विद्यते ॥ ७१ ॥

avicāro vicāreṇa nimeṣādeva naśyati ,
eṣā sattaiva tenāntaravidyaiṣā na vidyate 71

71. avicāraḥ vicāreṇa nimeṣāt eva naśyati | eṣā sattā
eva tena antara avidyā eṣā na vidyate || 71 ||

71. avicāraḥ vicāreṇa nimeṣāt eva naśyati tena
eṣā sattā eva; eṣā antara avidyā na vidyate 71

71. Lack of inquiry (avicāra) perishes instantly by means of (proper) inquiry (vicāra). Therefore, this is merely existence (sattā) itself; this inner ignorance (avidyā) simply does not exist.

Words meanings summery:

• अविचारः (avicāraḥ) - lack of inquiry (avicāra) (lack of inquiry, thoughtlessness)

• विचारेण (vicāreṇa) - by means of (proper) inquiry (vicāra) (by inquiry, by discrimination)

• निमेषात् (nimeṣāt) - in an instant (from an instant, in a blink)

• एव (eva) - instantly (only, just, indeed, merely)

• नश्यति (naśyati) - perishes (perishes, is destroyed, disappears)

• एषा (eṣā) - this (referring to sattā) (this (feminine))

• सत्ता (sattā) - existence (sattā) itself (existence, being, reality)

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

• तेन (tena) - therefore (by that, therefore, on that account)

• अन्तर (antara) - inner (inner, interior, intermediate, within)

• अविद्या (avidyā) - ignorance (avidyā) (ignorance, nescience)

• एषा (eṣā) - this (referring to antaravidyā) (this (feminine))

• न (na) - not

• विद्यते (vidyate) - does exist (exists, is found, is known)

Words meanings and morphology

अविचारः (avicāraḥ) - lack of inquiry (avicāra) (lack of inquiry, thoughtlessness)

(noun)

Nominative, masculine, singular of avicāra

avicāra - lack of inquiry, thoughtlessness, indiscretion

From a- (negation) + vicāra (inquiry)

Compound type : nañ-tatpuruṣa (a+vicāra)

• a – not, non-
  indeclinable
• vicāra – inquiry, deliberation, consideration, reflection
  noun (masculine)
  From vi- + √car
  Prefix: vi
  Root: car (class 1)

Note: Original term for 'lack of inquiry'.

विचारेण (vicāreṇa) - by means of (proper) inquiry (vicāra) (by inquiry, by discrimination)

(noun)

Instrumental, masculine, singular of vicāra

vicāra - inquiry, deliberation, consideration, reflection

From vi- + √car

Prefix: vi

Root: car (class 1)

Note: Original term for 'inquiry'.

निमेषात् (nimeṣāt) - in an instant (from an instant, in a blink)

(noun)

Ablative, masculine, singular of nimeṣa

nimeṣa - a wink, a twinkling of an eye, an instant

From ni- + √miṣ (to wink)

Prefix: ni

Root: miṣ (class 1)

Note: Used adverbially.

एव (eva) - instantly (only, just, indeed, merely)

(indeclinable)

नश्यति (naśyati) - perishes (perishes, is destroyed, disappears)

(verb)

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

present active

root naś, third singular present active parasmaipada

Root: naś (class 4)

एषा (eṣā) - this (referring to sattā) (this (feminine))

(pronoun)

Nominative, feminine, singular of etad

etad - this, this here

Note: Feminine nominative singular of etad.

सत्ता (sattā) - existence (sattā) itself (existence, being, reality)

(noun)

Nominative, feminine, singular of sattā

sattā - existence, being, reality, essence

From √as (to be) + suffix -tā

Root: as (class 2)

Note: Original term for 'existence'.

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

(indeclinable)

तेन (tena) - therefore (by that, therefore, on that account)

(pronoun)

Instrumental, masculine, singular of tad

tad - that, he, she, it

Note: Often used adverbially to mean 'therefore'.

अन्तर (antara) - inner (inner, interior, intermediate, within)

(adjective)

Nominative, feminine, singular of antara

antara - inner, interior, intervening, different

Note: This is the first part of the compound antaravidyā.

अविद्या (avidyā) - ignorance (avidyā) (ignorance, nescience)

(noun)

Nominative, feminine, singular of avidyā

avidyā - ignorance, nescience, spiritual ignorance

From a- (negation) + vidyā (knowledge)

Compound type : nañ-tatpuruṣa (a+vidyā)

• a – not, non-
  indeclinable
• vidyā – knowledge, learning, science
  noun (feminine)
  From √vid
  Root: vid (class 2)

Note: Original term for 'ignorance'. Part of a compound antaravidyā.

एषा (eṣā) - this (referring to antaravidyā) (this (feminine))

(pronoun)

Nominative, feminine, singular of etad

etad - this, this here

Note: Feminine nominative singular of etad.

न (na) - not

(indeclinable)

विद्यते (vidyate) - does exist (exists, is found, is known)

(verb)

3rd person , singular, middle, present (lat) of vid

present middle

root vid, third singular present middle (ātmanepada)

Root: vid (class 4)

Note: The verbal root √vid (class 4) means 'to exist, to be found' in the middle voice.