योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-106, verse-18

यस्योन्मेषनिमेषाभ्यां जगत्सत्तालयोदयौ ।
स्वानुभूत्यात्मकं स्वान्तः स्थितं तद्विद्धिचिन्नभः ॥ १८ ॥

yasyonmeṣanimeṣābhyāṃ jagatsattālayodayau ,
svānubhūtyātmakaṃ svāntaḥ sthitaṃ tadviddhicinnabhaḥ 18

18. yasya unmeṣanimeṣābhyām jagatsattālayodayau
svānubhūtyātmakam sva antaḥ sthitam tat viddhi cit nabhaḥ

18. tat cinnabhaḥ viddhi yasya unmeṣanimeṣābhyām
jagatsattālayodayau svānubhūtyātmakam sva antaḥ sthitam

18. Know that consciousness-sky (cinnabhaḥ) to be of the nature of self-experience, situated within oneself, by whose opening and closing (of consciousness) occur the manifestation and dissolution of the world's existence.

Words meanings summery:

• यस्य (yasya) - whose, of which

• उन्मेषनिमेषाभ्याम् (unmeṣanimeṣābhyām) - by opening and closing, by expansion and contraction

• जगत्सत्तालयोदयौ (jagatsattālayodayau) - the world's existence, dissolution, and manifestation

• स्वानुभूत्यात्मकम् (svānubhūtyātmakam) - whose nature is self-experience, consisting of self-realization

• स्व (sva) - own, one's own, self

• अन्तः (antaḥ) - within, inside, inwardly

• स्थितम् (sthitam) - situated, existing, standing

• तत् (tat) - that, it

• विद्धि (viddhi) - know! understand!

• चित् (cit) - consciousness, pure awareness

• नभः (nabhaḥ) - sky, space, ether

Words meanings and morphology

यस्य (yasya) - whose, of which

(pronoun)

Genitive, singular of yad

yad - which, what

Note: Genitive singular of the relative pronoun 'yad'.

उन्मेषनिमेषाभ्याम् (unmeṣanimeṣābhyām) - by opening and closing, by expansion and contraction

(noun)

Instrumental, masculine, dual of unmeṣanimeṣa

unmeṣanimeṣa - opening and closing (of eyes), expansion and contraction

Dvandva compound of 'unmeṣa' and 'nimeṣa'.

Compound type : dvandva (unmeṣa+nimeṣa)

• unmeṣa – opening (of eyes), blossoming, expansion
  noun (masculine)
  From root miṣ (to open eyes, wink) with prefix ud.
  Prefix: ud
  Root: miṣ (class 4)
• nimeṣa – closing (of eyes), winking, contraction
  noun (masculine)
  From root miṣ (to open eyes, wink) with prefix ni.
  Prefix: ni
  Root: miṣ (class 4)

जगत्सत्तालयोदयौ (jagatsattālayodayau) - the world's existence, dissolution, and manifestation

(noun)

Nominative, masculine, dual of jagatsattālayodaya

jagatsattālayodaya - the world's existence, dissolution, and manifestation

Complex compound. 'Jagat' (world) is a genitive modifier. 'Sattālayodaya' is a dvandva compound of 'sattā' (existence), 'laya' (dissolution), and 'udaya' (manifestation).

Compound type : ṣaṣṭhī-tatpuruṣa followed by dvandva (jagat+sattā+laya+udaya)

• jagat – world, universe
  noun (neuter)
  Present Active Participle
  From root gam (to go) in present active participle form, nominalized.
  Root: gam (class 1)
• sattā – existence, being, reality
  noun (feminine)
  From root as (to be).
  Root: as (class 2)
• laya – dissolution, merging, absorption
  noun (masculine)
  From root lī (to dissolve).
  Root: lī (class 4)
• udaya – rising, manifestation, origin
  noun (masculine)
  From root i (to go) with prefix ud.
  Prefix: ud
  Root: i (class 2)

Note: The dual ending applies to 'laya' and 'udaya' as a pair, while 'sattā' is a separate element in the overall meaning, or it's a collective dvandva with dual ending.

स्वानुभूत्यात्मकम् (svānubhūtyātmakam) - whose nature is self-experience, consisting of self-realization

(adjective)

neuter, singular of svānubhūtyātmaka

svānubhūtyātmaka - whose nature is self-experience, self-experiential

Compound of 'sva' (self), 'anubhūti' (experience), and 'ātmaka' (having the nature of).

Compound type : tatpuruṣa (sva+anubhūti+ātmaka)

• sva – self, own
  pronoun/adjective
• anubhūti – experience, perception, feeling
  noun (feminine)
  From root bhū (to be) with prefixes anu.
  Prefix: anu
  Root: bhū (class 1)
• ātmaka – whose nature is, consisting of, pertaining to the self
  adjective (masculine)
  Suffix -ātmakam indicating nature or essence. Related to ātman (self).
  Root: ātmā

Note: Agrees with 'tat cinnabhaḥ'.

स्व (sva) - own, one's own, self

(pronoun)

singular of sva

sva - own, one's own, self, property

Note: Part of 'sva antaḥ' (within oneself).

अन्तः (antaḥ) - within, inside, inwardly

(indeclinable)

स्थितम् (sthitam) - situated, existing, standing

(adjective)

neuter, singular of sthita

sthita - stood, standing, situated, existing

Past Passive Participle

Past Passive Participle of root 'sthā' (to stand, stay).

Root: sthā (class 1)

Note: Agrees with 'tat cinnabhaḥ'.

तत् (tat) - that, it

(pronoun)

Nominative, neuter, singular of tad

tad - that, he, she, it

Note: Referring to the cinnabhaḥ.

विद्धि (viddhi) - know! understand!

(verb)

2nd person , singular, active, imperative (loṭ) of vid

Imperative Active

Root 'vid' (class 2, 'vid' jñāne), second person singular, imperative active. Irregular form.

Root: vid (class 2)

चित् (cit) - consciousness, pure awareness

(noun)

neuter, singular of cit

cit - consciousness, intelligence, mind, pure awareness

Root: cit (class 1)

Note: First part of the compound 'cinnabhaḥ'.

नभः (nabhaḥ) - sky, space, ether

(noun)

Nominative, neuter, singular of nabhas

nabhas - sky, atmosphere, space, ether

Note: Second part of the compound 'cinnabhaḥ'.