योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-103, verse-21

विज्ञातमप्यविज्ञातमात्मज्ञानमिदं भवेत् ।
भवतां भूरिभागानां संभूयाभ्यसनं विना ॥ २१ ॥

vijñātamapyavijñātamātmajñānamidaṃ bhavet ,
bhavatāṃ bhūribhāgānāṃ saṃbhūyābhyasanaṃ vinā 21

21. vijñātam api avijñātam ātmajñānam idam bhavet |
bhavatām bhūribhāgānām saṃbhūya abhyasanam vinā

21. idam ātmajñānam vijñātam api,
bhavatām bhūribhāgānām saṃbhūya abhyasanam vinā avijñātam bhavet

21. Even though understood, this knowledge of the Self (ātman) will remain unknown to you, the most fortunate, without diligent practice undertaken together.

Words meanings summery:

• विज्ञातम् (vijñātam) - known, understood, ascertained

• अपि (api) - even, also, although

• अविज्ञातम् (avijñātam) - unknown, not understood

• आत्मज्ञानम् (ātmajñānam) - knowledge of the Self (ātman)

• इदम् (idam) - this

• भवेत् (bhavet) - would be, should be, might be, remains

• भवताम् (bhavatām) - of you, for you (plural, honorific)

• भूरिभागानाम् (bhūribhāgānām) - of the greatly fortunate ones, for the very lucky

• संभूय (saṁbhūya) - having come together, having gathered, collectively

• अभ्यसनम् (abhyasanam) - practice, study, diligent application

• विना (vinā) - without

Words meanings and morphology

विज्ञातम् (vijñātam) - known, understood, ascertained

(adjective)

Nominative, neuter, singular of vijñāta

vijñāta - known, understood, ascertained

Past Passive Participle

From root jñā with prefix vi-

Prefix: vi

Root: jñā (class 9)

अपि (api) - even, also, although

(indeclinable)

अविज्ञातम् (avijñātam) - unknown, not understood

(adjective)

Nominative, neuter, singular of avijñāta

avijñāta - unknown, not understood

Past Passive Participle

Formed with negative prefix 'a-'

Compound type : nañ-tatpuruṣa (a+vijñāta)

• a – not, non-
  indeclinable
• vijñāta – known, understood
  adjective (neuter)
  Past Passive Participle
  Prefix: vi
  Root: jñā (class 9)

आत्मज्ञानम् (ātmajñānam) - knowledge of the Self (ātman)

(noun)

Nominative, neuter, singular of ātmajñāna

ātmajñāna - knowledge of the Self (ātman)

Compound type : ṣaṣṭhī-tatpuruṣa (ātman+jñāna)

• ātman – Self, soul, essence
  noun (masculine)
• jñāna – knowledge, wisdom
  noun (neuter)
  Root: jñā (class 9)

इदम् (idam) - this

(pronoun)

Nominative, neuter, singular of idam

idam - this

भवेत् (bhavet) - would be, should be, might be, remains

(verb)

3rd person , singular, active, optative (vidhi-liṅ) of bhū

Root: bhū (class 1)

भवताम् (bhavatām) - of you, for you (plural, honorific)

(pronoun)

Genitive, masculine, plural of bhavat

bhavat - you (honorific), your honor

Present Active Participle (functioning as a pronoun/adjective)

From root bhū, functioning as a polite pronoun

Root: bhū (class 1)

भूरिभागानाम् (bhūribhāgānām) - of the greatly fortunate ones, for the very lucky

(adjective)

Genitive, masculine, plural of bhūribhāga

bhūribhāga - very fortunate, very lucky

Compound type : karmadhāraya (bhūri+bhāga)

• bhūri – much, abundant, great
  adjective (neuter)
• bhāga – share, portion, fortune
  noun (masculine)
  Root: bhaj (class 1)

संभूय (saṁbhūya) - having come together, having gathered, collectively

(indeclinable)

Absolutive / Gerund

From root bhū with prefix sam-

Prefix: sam

Root: bhū (class 1)

अभ्यसनम् (abhyasanam) - practice, study, diligent application

(noun)

Nominative, neuter, singular of abhyasana

abhyasana - practice, study, diligent application

Verbal noun

From root as with prefix abhi-

Prefix: abhi

Root: as (class 4)

विना (vinā) - without

(indeclinable)