योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-42, verse-15

विष्वग्विश्वमपारैकपरमाकाशकोशता ।
यथा स्पन्दानिलद्वित्वं शाब्दमेव न वास्तवम् ॥ १५ ॥

viṣvagviśvamapāraikaparamākāśakośatā ,
yathā spandāniladvitvaṃ śābdameva na vāstavam 15

15. viṣvak viśvam apāraikaparāmākāśakośatā yathā
spandāniladvitvam śābdam eva na vāstavam

15. viṣvak viśvam apāraikaparāmākāśakośatā yathā
spandāniladvitvam śābdam eva na vāstavam

15. The entire universe (viśvam) is characterized by being an endless, singular, supreme expanse of space (ākāśa). Just as the duality between vibration and air (anila) is merely verbal and not truly real.

Words meanings summery:

• विष्वक् (viṣvak) - entirely (entirely, completely, everywhere, all around)

• विश्वम् (viśvam) - the entire universe (viśvam) (the universe, all, whole, entire)

• अपारैकपरामाकाशकोशता (apāraikaparāmākāśakośatā) - the state of being an endless, single, supreme expanse of space (the state of being an endless, single, supreme space-sheath/cavity)

• यथा (yathā) - just as (just as, as)

• स्पन्दानिलद्वित्वम् (spandāniladvitvam) - the duality between vibration and air (anila) (the duality of vibration and air)

• शाब्दम् (śābdam) - merely verbal (verbal, relating to words, nominal, based on sound)

• एव (eva) - merely (only, merely, indeed, certainly)

• न (na) - not (not, no, nor)

• वास्तवम् (vāstavam) - truly real (real, actual, substantial, relating to a dwelling)

Words meanings and morphology

विष्वक् (viṣvak) - entirely (entirely, completely, everywhere, all around)

(indeclinable)

विश्वम् (viśvam) - the entire universe (viśvam) (the universe, all, whole, entire)

(noun)

Nominative, neuter, singular of viśva

viśva - all, whole, universe

अपारैकपरामाकाशकोशता (apāraikaparāmākāśakośatā) - the state of being an endless, single, supreme expanse of space (the state of being an endless, single, supreme space-sheath/cavity)

(noun)

Nominative, feminine, singular of apāraikaparāmākāśakośatā

apāraikaparāmākāśakośatā - the state of being an endless, single, supreme space-sheath

tā suffix for abstract quality

Compound type : karmadhāraya / tatpuruṣa (apāra+eka+parama+ākāśa+kośa+tā)

• apāra – boundless, endless, unlimited
  adjective
  a (negation) + pāra (end, limit)
• eka – one, single, unique
  adjective
• parama – supreme, highest, ultimate
  adjective
• ākāśa – space, ether, sky
  noun (masculine/neuter)
  ā (prefix) + kāś (to shine/appear)
  Prefix: ā
  Root: kāś (class 1)
• kośa – sheath, cavity, treasury
  noun (masculine/neuter)
  Root: kuś (class 9)
• tā – -ness, -hood (abstract suffix)
  suffix (feminine)
  Abstract noun suffix

Note: āmā from parama + ākāśa via sandhi, in roman_words_no_sandhi it is parama ākāśa.

यथा (yathā) - just as (just as, as)

(indeclinable)

स्पन्दानिलद्वित्वम् (spandāniladvitvam) - the duality between vibration and air (anila) (the duality of vibration and air)

(noun)

Nominative, neuter, singular of spandāniladvitva

spandāniladvitva - duality of vibration and air

Compound type : dvandva-tatpuruṣa (spanda+anila+dvitva)

• spanda – vibration, tremor, pulsation, motion
  noun (masculine)
  From spand (to vibrate) + a suffix
  Root: spand (class 1)
• anila – wind, air, vital breath
  noun (masculine)
  From an (to breathe) + ila suffix
  Root: an (class 2)
• dvitva – duality, twoness
  noun (neuter)
  dvi (two) + tva (abstract suffix)

Note: Sandhi ā from spanda + anila.

शाब्दम् (śābdam) - merely verbal (verbal, relating to words, nominal, based on sound)

(adjective)

Nominative, neuter, singular of śābda

śābda - verbal, phonetic, relating to words

From śabda (word, sound) + aṇ suffix

एव (eva) - merely (only, merely, indeed, certainly)

(indeclinable)

न (na) - not (not, no, nor)

(indeclinable)

Negative particle

वास्तवम् (vāstavam) - truly real (real, actual, substantial, relating to a dwelling)

(adjective)

Nominative, neuter, singular of vastava

vastava - real, actual, substantial

From vastu (thing, reality) + aṇ suffix