योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-94, verse-52

आतिवाहिकदेहस्य तस्य तच्चिरभावनात् ।
सर्गानुभवनं भूरि ब्रह्मणो ब्रह्मरूप्यपि ॥ ५२ ॥

ātivāhikadehasya tasya taccirabhāvanāt ,
sargānubhavanaṃ bhūri brahmaṇo brahmarūpyapi 52

52. ātivāhikadehasya tasya taccirabhāvanāt sarga
anubhavanam bhūri brahmaṇaḥ brahmarūpi api

52. tasya ātivāhikadehasya taccirabhāvanāt
brahmaṇaḥ brahmarūpi api bhūri sarga anubhavanam

52. Due to his long and continuous contemplation of that subtle body, that being (Brahmā), though essentially of the nature of the absolute (brahman), experiences a vast creation.

Words meanings summery:

• आतिवाहिकदेहस्य (ātivāhikadehasya) - of the subtle body, of the ethereal body

• तस्य (tasya) - of Brahmā (of him, of that)

• तच्चिरभावनात् (taccirabhāvanāt) - from long contemplation of that, due to continuous meditation on that

• सर्ग (sarga) - creation, emanation

• अनुभवनम् (anubhavanam) - experience, perception

• भूरि (bhūri) - abundant, extensive, great

• ब्रह्मणः (brahmaṇaḥ) - of Brahmā (the creator god) (of Brahma (the creator god), of the divine principle)

• ब्रह्मरूपि (brahmarūpi) - having the form of Brahman, of the nature of Brahman

• अपि (api) - also, even, although

Words meanings and morphology

आतिवाहिकदेहस्य (ātivāhikadehasya) - of the subtle body, of the ethereal body

(noun)

Genitive, masculine, singular of ātivāhikadeha

ātivāhikadeha - subtle body, ethereal body (that which carries the soul across)

Compound type : karmadhāraya (ātivāhika+deha)

• ātivāhika – subtle, ethereal, carrying across
  adjective (masculine)
  derived from ati-vah with ika suffix
  Prefix: ati
  Root: vah (class 1)
• deha – body, form
  noun (masculine)

तस्य (tasya) - of Brahmā (of him, of that)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

Note: Refers to Brahmā

तच्चिरभावनात् (taccirabhāvanāt) - from long contemplation of that, due to continuous meditation on that

(noun)

Ablative, feminine, singular of taccirabhāvanā

taccirabhāvanā - long contemplation of that, continuous meditation on that

Compound type : tatpuruṣa (tad+cira+bhāvanā)

• tad – that
  pronoun (neuter)
• cira – long, lasting, for a long time
  adjective
• bhāvanā – contemplation, meditation, imagination, production
  noun (feminine)
  derived from root bhū (to be) in causative sense, then suffix anā
  Root: bhū (class 1)

सर्ग (sarga) - creation, emanation

(noun)

Nominative, masculine, singular of sarga

sarga - creation, emanation, discharge

from sṛj (to create, emit) with a suffix

Root: sṛj (class 6)

Note: First part of the compound 'sarga anubhavanam'

अनुभवनम् (anubhavanam) - experience, perception

(noun)

Nominative, neuter, singular of anubhavana

anubhavana - experience, perception, feeling

from anu-bhū + ana suffix

Prefix: anu

Root: bhū (class 1)

Note: Second part of the compound 'sarga anubhavanam'

भूरि (bhūri) - abundant, extensive, great

(adjective)

Nominative, neuter, singular of bhūri

bhūri - abundant, extensive, great, much

ब्रह्मणः (brahmaṇaḥ) - of Brahmā (the creator god) (of Brahma (the creator god), of the divine principle)

(proper noun)

Genitive, masculine, singular of brahman

brahman - Brahma (the creator god), a priest, the sacred syllable Om

ब्रह्मरूपि (brahmarūpi) - having the form of Brahman, of the nature of Brahman

(adjective)

Nominative, masculine, singular of brahmarūpin

brahmarūpin - having the form of Brahman, identical with Brahman

rūpin suffix from rūpa

Compound type : bahuvrīhi (brahman+rūpin)

• brahman – the absolute, ultimate reality
  noun (neuter)
• rūpin – having form, possessed of form
  adjective (masculine)
  in suffix to rūpa (form)

Note: Modifies implied subject, Brahmā

अपि (api) - also, even, although

(indeclinable)

Particle for emphasis