योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-32, verse-13

अहंभावनया बोधे वासना घनतानवा ।
विपश्चित्संगमाभ्यासात्पाण्डित्यमिव मूढता ॥ १३ ॥

ahaṃbhāvanayā bodhe vāsanā ghanatānavā ,
vipaścitsaṃgamābhyāsātpāṇḍityamiva mūḍhatā 13

13. ahaṃbhāvanayā bodhe vāsanā ghanatānavā
vipaścit saṅgamābhyāsāt pāṇḍityam iva mūḍhatā

13. vāsanā ahaṃbhāvanayā bodhe ghanatānavā
mūḍhatā vipaścit saṅgamābhyāsāt pāṇḍityam iva

13. The latent impressions (vāsanā) in consciousness (bodha), which are dense due to the ego-sense (ahaṃbhāvanā), become attenuated, just as ignorance (mūḍhatā) becomes scholarship through the practice of associating with the wise.

Words meanings summery:

• अहंभावनया (ahaṁbhāvanayā) - by the sense of 'I', by ego-sense, by egoism

• बोधे (bodhe) - in consciousness, in knowledge, in awakening

• वासना (vāsanā) - latent impression, subtle desire, habitual tendency, psychological predisposition

• घनतानवा (ghanatānavā) - dense and strong, but becoming attenuated and subtle (describing vāsanā) (dense and subtle, strong and delicate, having density and thinness)

• विपश्चित् (vipaścit) - a wise person whose association leads to wisdom (wise person, learned, discerning)

• सङ्गमाभ्यासात् (saṅgamābhyāsāt) - from the practice of associating with wise persons (from the practice of association, by repeated association)

• पाण्डित्यम् (pāṇḍityam) - scholarship, wisdom, learnedness

• इव (iva) - like, as, as if

• मूढता (mūḍhatā) - ignorance, foolishness, stupidity

Words meanings and morphology

अहंभावनया (ahaṁbhāvanayā) - by the sense of 'I', by ego-sense, by egoism

(noun)

Instrumental, feminine, singular of ahaṃbhāvanā

ahaṁbhāvanā - ego-sense, the conception of 'I', egoism

Compound type : tatpurusha (aham+bhāvanā)

• aham – I
  pronoun
• bhāvanā – conception, idea, feeling, cultivation
  noun (feminine)
  Root: bhū (class 1)

बोधे (bodhe) - in consciousness, in knowledge, in awakening

(noun)

Locative, masculine, singular of bodha

bodha - consciousness, knowledge, awakening, perception

Root: budh (class 1)

वासना (vāsanā) - latent impression, subtle desire, habitual tendency, psychological predisposition

(noun)

Nominative, feminine, singular of vāsanā

vāsanā - latent impression, subtle desire, habitual tendency, psychological predisposition

घनतानवा (ghanatānavā) - dense and strong, but becoming attenuated and subtle (describing vāsanā) (dense and subtle, strong and delicate, having density and thinness)

(adjective)

Nominative, feminine, singular of ghanatānavā

ghanatānavā - dense and subtle, strong and attenuated

Compound type : karmadhāraya (ghana+tanu)

• ghana – dense, thick, strong, intense
  adjective
• tanu – thin, subtle, attenuated, delicate
  adjective

विपश्चित् (vipaścit) - a wise person whose association leads to wisdom (wise person, learned, discerning)

(noun)

masculine, singular of vipaścit

vipaścit - wise person, learned, discerning, a sage

Root: paś (class 1)

Note: This word is the first part of a compound `vipaścit-saṅgamābhyāsa`.

सङ्गमाभ्यासात् (saṅgamābhyāsāt) - from the practice of associating with wise persons (from the practice of association, by repeated association)

(noun)

Ablative, masculine, singular of saṅgamābhyāsa

saṅgamābhyāsa - practice of association, repeated association

Compound type : tatpurusha (saṅgama+abhyāsa)

• saṅgama – association, union, company
  noun (masculine)
  Prefix: sam
  Root: gam (class 1)
• abhyāsa – practice, repetition, study
  noun (masculine)
  Prefix: abhi
  Root: as (class 4)

पाण्डित्यम् (pāṇḍityam) - scholarship, wisdom, learnedness

(noun)

Nominative, neuter, singular of pāṇḍitya

pāṇḍitya - scholarship, wisdom, learnedness

इव (iva) - like, as, as if

(indeclinable)

मूढता (mūḍhatā) - ignorance, foolishness, stupidity

(noun)

Nominative, feminine, singular of mūḍhatā

mūḍhatā - ignorance, foolishness, stupidity