योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-32, verse-42

दृढभावनया पश्चात्तत्रैव रसशालिनी ।
आतिवाहिकदेहत्वं विस्मरत्यखिलं क्षणात् ॥ ४२ ॥

dṛḍhabhāvanayā paścāttatraiva rasaśālinī ,
ātivāhikadehatvaṃ vismaratyakhilaṃ kṣaṇāt 42

42. dṛḍhabhāvanayā paścāt tatra eva rasaśālinī |
ātivāhikadehatvam vismarati akhilam kṣaṇāt ||

42. paścāt dṛḍhabhāvanayā tatra eva rasaśālinī
ātivāhikadehatvam akhilam kṣaṇāt vismarati

42. Afterwards, through firm contemplation (bhāvanā), [the mind/conscious principle], becoming fully absorbed in that very [object or state], instantly and completely forgets its own subtle (ātivāhika) body.

Words meanings summery:

• दृढभावनया (dṛḍhabhāvanayā) - by firm contemplation, by strong conviction

• पश्चात् (paścāt) - afterwards, subsequently, behind

• तत्र (tatra) - in that very [state/object previously mentioned] (there, in that place, in that matter)

• एव (eva) - very (intensifier) (only, just, indeed, certainly)

• रसशालिनी (rasaśālinī) - absorbed in the essence [of that object/state] (full of essence, rich in flavor, delightful)

• आतिवाहिकदेहत्वम् (ātivāhikadehatvam) - the state of being a subtle body, the nature of the subtle body

• विस्मरति (vismarati) - forgets

• अखिलम् (akhilam) - completely (adverbial use) (all, entire, whole, complete)

• क्षणात् (kṣaṇāt) - in an instant, quickly, momentarily

Words meanings and morphology

दृढभावनया (dṛḍhabhāvanayā) - by firm contemplation, by strong conviction

(noun)

Instrumental, feminine, singular of dṛḍhabhāvanā

dṛḍhabhāvanā - firm contemplation, strong conviction, resolute imagination

Compound type : tatpuruṣa (dṛḍha+bhāvanā)

• dṛḍha – firm, strong, solid
  adjective (masculine)
• bhāvanā – contemplation, imagination, conception, mental realization
  noun (feminine)
  From root bhū (to be) + ṇic + yuṭ
  Root: bhū (class 1)

पश्चात् (paścāt) - afterwards, subsequently, behind

(indeclinable)

तत्र (tatra) - in that very [state/object previously mentioned] (there, in that place, in that matter)

(indeclinable)

Derived from pronominal root tad (that) + tral suffix.

एव (eva) - very (intensifier) (only, just, indeed, certainly)

(indeclinable)

रसशालिनी (rasaśālinī) - absorbed in the essence [of that object/state] (full of essence, rich in flavor, delightful)

(adjective)

Nominative, feminine, singular of rasaśālin

rasaśālin - having rasa (essence, taste, delight), full of juice/flavor, charming, delightful

From rasa + śālin (possessing, endowed with).

Compound type : tatpuruṣa (rasa+śālin)

• rasa – juice, sap, essence, taste, aesthetic sentiment, delight
  noun (masculine)
• śālin – possessing, endowed with, shining
  adjective (masculine)
  Suffix -śālin added to nouns to mean 'possessing'
  Root: śāl (class 1)

Note: Qualifies the implicit subject (e.g., the mind or operating intelligence).

आतिवाहिकदेहत्वम् (ātivāhikadehatvam) - the state of being a subtle body, the nature of the subtle body

(noun)

Accusative, neuter, singular of ātivāhikadehatva

ātivāhikadehatva - the state/nature of the subtle body (ātivāhika deha)

Compound with suffix -tva for abstract noun.

Compound type : tatpuruṣa (ātivāhikadeha+tva)

• ātivāhikadeha – subtle body (vehicle of the soul)
  noun (masculine)
  Compound: ati (over) + vāhika (carrying) + deha (body). A body that carries one over.
  Prefix: ati
  Root: vah (class 1)
• tva – state of being, nature of (suffix)
  suffix (neuter)
  Abstract noun forming suffix

विस्मरति (vismarati) - forgets

(verb)

3rd person , singular, active, present (laṭ) of smarati

present indicative

Present tense, 3rd person singular, active voice.

Prefix: vi

Root: smṛ (class 1)

अखिलम् (akhilam) - completely (adverbial use) (all, entire, whole, complete)

(adjective)

Accusative, neuter, singular of akhila

akhila - all, entire, whole, complete

'a' (not) + 'khila' (gap, empty space); without gaps, complete.

Note: Agrees with ātivāhikadehatvam.

क्षणात् (kṣaṇāt) - in an instant, quickly, momentarily

(noun)

Ablative, masculine, singular of kṣaṇa

kṣaṇa - instant, moment, very short period of time

Root: kṣaṇ (class 1)

Note: Indicates 'from/within an instant'.