योगवासिष्ठः yogavāsiṣṭhaḥ - book-2, chapter-14, verse-1

श्रीवसिष्ठ उवाच ।
शास्त्रावबोधामलया धिया परमपूतया ।
कर्तव्यः कारणज्ञेन विचारोऽनिशमात्मनः ॥ १ ॥

śrīvasiṣṭha uvāca ,
śāstrāvabodhāmalayā dhiyā paramapūtayā ,
kartavyaḥ kāraṇajñena vicāro'niśamātmanaḥ 1

1. śrīvasiṣṭha uvāca śāstrāvabodhamalayā dhiyā paramapūtayā
kartavyaḥ kāraṇajñena vicāraḥ aniśam ātmanaḥ

1. śrīvasiṣṭha uvāca.
kāraṇajñena śāstrāvabodhamalayā paramapūtayā dhiyā aniśam ātmanaḥ vicāraḥ kartavyaḥ

1. Śrī Vasiṣṭha said: One who understands the ultimate cause (kāraṇajña) should constantly undertake an inquiry (vicāra) into the nature of the self (ātman), using a supremely pure intellect (dhī) made immaculate by the understanding of scriptures.

Words meanings summery:

• श्रीवसिष्ठ (śrīvasiṣṭha) - The venerable Vasiṣṭha (Śrī Vasiṣṭha (a revered sage))

• उवाच (uvāca) - said (said, spoke)

• शास्त्रावबोधमलया (śāstrāvabodhamalayā) - by intellect made immaculate through scriptural comprehension (by intellect purified by understanding of scriptures)

• धिया (dhiyā) - by one's intellect (by intellect, by mind, by thought)

• परमपूतया (paramapūtayā) - supremely pure (supremely pure, most purified)

• कर्तव्यः (kartavyaḥ) - should be undertaken (to be done, ought to be performed, should be made)

• कारणज्ञेन (kāraṇajñena) - by one who understands the ultimate cause (by one who knows the cause, by a wise person, by an expert)

• विचारः (vicāraḥ) - inquiry (vicāra) (inquiry, investigation, reflection, discrimination)

• अनिशम् (aniśam) - constantly, without interruption (constantly, ceaselessly, day and night, without rest)

• आत्मनः (ātmanaḥ) - into the nature of the self (ātman) (of the self, of the soul, of oneself)

Words meanings and morphology

श्रीवसिष्ठ (śrīvasiṣṭha) - The venerable Vasiṣṭha (Śrī Vasiṣṭha (a revered sage))

(proper noun)

Nominative, masculine, singular of śrīvasiṣṭha

śrīvasiṣṭha - Venerable Vasiṣṭha (a proper noun, referring to the sage Vasiṣṭha)

Compound type : karmadhāraya (śrī+vasiṣṭha)

• śrī – auspiciousness, prosperity, revered, glorious
  noun (feminine)
• vasiṣṭha – Vasiṣṭha (name of a sage)
  proper noun (masculine)

Note: Subject of uvāca.

उवाच (uvāca) - said (said, spoke)

(verb)

3rd person , singular, active, past perfect (lit) of vac

Root: vac (class 2)

Note: Form of perfect tense of 'vac'.

शास्त्रावबोधमलया (śāstrāvabodhamalayā) - by intellect made immaculate through scriptural comprehension (by intellect purified by understanding of scriptures)

(adjective)

Instrumental, feminine, singular of śāstrāvabodhamalā

śāstrāvabodhamalā - pure through understanding of scriptures

Compound type : bahuvrihi (śāstra+avabodha+amala)

• śāstra – scripture, treatise, rule
  noun (neuter)
• avabodha – understanding, comprehension, knowledge
  noun (masculine)
  from ava + root budh (to know)
  Prefix: ava
  Root: budh (class 1)
• amala – immaculate, pure, spotless
  adjective (feminine)
  a (negation) + mala (dirt)
  Prefix: a

Note: Qualifies dhiyā.

धिया (dhiyā) - by one's intellect (by intellect, by mind, by thought)

(noun)

Instrumental, feminine, singular of dhī

dhī - intellect, mind, thought, understanding

Note: Instrument of kartavyaḥ.

परमपूतया (paramapūtayā) - supremely pure (supremely pure, most purified)

(adjective)

Instrumental, feminine, singular of paramapūtā

paramapūtā - supremely pure, most purified

Compound type : karmadhāraya (parama+pūtā)

• parama – supreme, highest, ultimate
  adjective (feminine)
• pūta – pure, purified, cleansed
  past passive participle (feminine)
  Past Passive Participle
  from root pū (to purify)
  Root: pū (class 1)

Note: Qualifies dhiyā.

कर्तव्यः (kartavyaḥ) - should be undertaken (to be done, ought to be performed, should be made)

(gerundive)

Note: Agrees with vicāraḥ.

कारणज्ञेन (kāraṇajñena) - by one who understands the ultimate cause (by one who knows the cause, by a wise person, by an expert)

(noun)

Instrumental, masculine, singular of kāraṇajña

kāraṇajña - one who knows the cause, wise person, expert

Compound type : tatpurusha (kāraṇa+jña)

• kāraṇa – cause, reason, motive
  noun (neuter)
• jña – knower, understanding
  adjective (masculine)
  from root jñā (to know)
  Root: jñā (class 9)

Note: Agent in a passive construction.

विचारः (vicāraḥ) - inquiry (vicāra) (inquiry, investigation, reflection, discrimination)

(noun)

Nominative, masculine, singular of vicāra

vicāra - inquiry, investigation, reflection, discrimination, deliberation

from prefix vi + root car (to move, to go) + suffix ghañ

Prefix: vi

Root: car (class 1)

Note: Subject of the implied passive verb kartavyaḥ.

अनिशम् (aniśam) - constantly, without interruption (constantly, ceaselessly, day and night, without rest)

(indeclinable)

from a- (negation) + niśā (night) + suffix am (adv.)

Note: Adverb modifying kartavyaḥ.

आत्मनः (ātmanaḥ) - into the nature of the self (ātman) (of the self, of the soul, of oneself)

(noun)

Genitive, masculine, singular of ātman

ātman - self, soul, spirit, essence, living principle

Root: an (class 2)

Note: Indicates the object of vicāraḥ ("inquiry of/into the self").