योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-57, verse-8

यदात्मगगनस्यान्तश्चित्त्वाच्छून्यत्ववेदनम् ।
तदहंतादि भेदादि भुवनादीति भावनम् ॥ ८ ॥

yadātmagaganasyāntaścittvācchūnyatvavedanam ,
tadahaṃtādi bhedādi bhuvanādīti bhāvanam 8

8. yadā ātma-gaganasyāntaḥ cittvāt śūnyatva-vedanam
tat ahaṃtā-ādi bheda-ādi bhuvana-ādi iti bhāvanam

8. yadā ātma-gaganasyāntaḥ cittvāt śūnyatva-vedanam
tat ahaṃtā-ādi bheda-ādi bhuvana-ādi iti bhāvanam

8. When, within the sky-like expanse of the Self (ātman), a perception of emptiness arises from its very nature as consciousness (cit), then that perception, characterized by ego (ahaṃtā) and various distinctions, is conceived as worlds and other phenomena.

Words meanings summery:

• यदा (yadā) - when

• आत्म-गगनस्यान्तः (ātma-gaganasyāntaḥ) - within the sky-like expanse of the Self (ātman) (within the Self-sky, in the interior of the sky of the Self)

• चित्त्वात् (cittvāt) - from its very nature as consciousness (cit) (due to consciousness, from being consciousness)

• शून्यत्व-वेदनम् (śūnyatva-vedanam) - a perception characterized by emptiness (perception of emptiness, knowledge of voidness)

• तत् (tat) - that (perception/manifestation mentioned previously) (that, it)

• अहंता-आदि (ahaṁtā-ādi) - ego (ahaṃtā) and other individualistic feelings/identifications (ego etc., beginning with ego)

• भेद-आदि (bheda-ādi) - distinctions and divisions (differences etc., beginning with differences)

• भुवन-आदि (bhuvana-ādi) - worlds and other cosmic phenomena (worlds etc., beginning with worlds)

• इति (iti) - as (indicating the nature of something) (thus, in this manner, so, indicating direct speech or a final point)

• भावनम् (bhāvanam) - is conceived (as) (conception, imagination, contemplation, realization, production)

Words meanings and morphology

यदा (yadā) - when

(indeclinable)

formed from the pronoun 'ya' with the suffix '-dā' (temporal)

आत्म-गगनस्यान्तः (ātma-gaganasyāntaḥ) - within the sky-like expanse of the Self (ātman) (within the Self-sky, in the interior of the sky of the Self)

(noun)

Nominative, masculine, singular of ātma-gagana-antas

ātma-gagana-antas - the interior of the Self-sky

Compound type : ṣaṣṭhī-tatpuruṣa (ātman+gagana+antas)

• ātman – Self, soul, essence, breath, spirit
  noun (masculine)
  Root: an (class 2)
• gagana – sky, atmosphere, heaven
  noun (neuter)
• antas – interior, within, inside
  indeclinable

Note: 'antaḥ' can also be an indeclinable meaning 'within'. The genitive 'ātma-gaganasyā' is connected to 'antaḥ' in a locative sense 'within the Self-sky'.

चित्त्वात् (cittvāt) - from its very nature as consciousness (cit) (due to consciousness, from being consciousness)

(noun)

Ablative, neuter, singular of cittva

cittva - the state or quality of being consciousness (cit)

derived from 'cit' (consciousness) with suffix '-tva' (state of being)

Note: Expresses cause or reason ('due to').

शून्यत्व-वेदनम् (śūnyatva-vedanam) - a perception characterized by emptiness (perception of emptiness, knowledge of voidness)

(noun)

Nominative, neuter, singular of śūnyatva-vedana

śūnyatva-vedana - the knowledge or perception of emptiness

Compound type : ṣaṣṭhī-tatpuruṣa (śūnyatva+vedana)

• śūnyatva – emptiness, voidness, nothingness
  noun (neuter)
  derived from 'śūnya' (empty) with suffix '-tva'
• vedana – knowledge, perception, sensation, feeling
  noun (neuter)
  verbal noun
  derived from root 'vid' (to know) with suffix '-ana'
  Root: vid (class 2)

Note: The subject of the first clause.

तत् (tat) - that (perception/manifestation mentioned previously) (that, it)

(pronoun)

Nominative, neuter, singular of tad

tad - that, this, he, she, it

Note: Serves as the subject for 'bhāvanam'.

अहंता-आदि (ahaṁtā-ādi) - ego (ahaṃtā) and other individualistic feelings/identifications (ego etc., beginning with ego)

(noun)

Nominative, masculine, singular of ahaṃtā-ādi

ahaṁtā-ādi - ego and so forth, beginning with ego

Compound type : tatpuruṣa (ahaṃtā+ādi)

• ahaṃtā – egoism, self-consciousness, the sense of 'I'
  noun (feminine)
  derived from 'aham' (I) with suffix '-tā'
• ādi – beginning, etc., and so forth
  indeclinable
  Root: ād (class 1)

Note: Qualifies the 'perception' (tat) as being characterized by ego and other distinctions.

भेद-आदि (bheda-ādi) - distinctions and divisions (differences etc., beginning with differences)

(noun)

Nominative, masculine, singular of bheda-ādi

bheda-ādi - differences and so forth, beginning with distinctions

Compound type : tatpuruṣa (bheda+ādi)

• bheda – division, distinction, difference, separation
  noun (masculine)
  derived from root 'bhid' (to split, to break)
  Root: bhid (class 7)
• ādi – beginning, etc., and so forth
  indeclinable
  Root: ād (class 1)

Note: Qualifies the 'perception' (tat).

भुवन-आदि (bhuvana-ādi) - worlds and other cosmic phenomena (worlds etc., beginning with worlds)

(noun)

Nominative, neuter, singular of bhuvana-ādi

bhuvana-ādi - worlds and so forth, beginning with worlds

Compound type : tatpuruṣa (bhuvana+ādi)

• bhuvana – world, being, existence, abode
  noun (neuter)
  derived from root 'bhū' (to be, to exist)
  Root: bhū (class 1)
• ādi – beginning, etc., and so forth
  indeclinable
  Root: ād (class 1)

Note: Functions as a noun in comparison.

इति (iti) - as (indicating the nature of something) (thus, in this manner, so, indicating direct speech or a final point)

(indeclinable)

भावनम् (bhāvanam) - is conceived (as) (conception, imagination, contemplation, realization, production)

(noun)

Nominative, neuter, singular of bhāvana

bhāvana - causing to be, forming, conceiving, contemplation, imagination, realization

verbal noun

derived from root 'bhū' (to be) in the causative sense with suffix '-ana'

Root: bhū (class 1)

Note: The predicate nominative for 'tat'.