योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-60, verse-6

भूताकाशं विशन्त्येते धूमश्रीरिव चाम्बुदम् ।
एकतां यान्ति जीवौघा ब्रह्मण्याकाशमारुतैः ॥ ६ ॥

bhūtākāśaṃ viśantyete dhūmaśrīriva cāmbudam ,
ekatāṃ yānti jīvaughā brahmaṇyākāśamārutaiḥ 6

6. bhūtākāśam viśanti ete dhūmaśrīḥ iva ca ambudam
ekatām yānti jīvaughāḥ brahmaṇi ākāśamārutaiḥ

6. ete jīvaughāḥ dhūmaśrīḥ ambudam ca iva bhūtākāśam
viśanti brahmaṇi ākāśamārutaiḥ ekatām yānti

6. Just as a line of smoke and a cloud enter the elemental space, so too these multitudes of individual souls (jīva) attain oneness (ekatā) in Brahman along with space and air.

Words meanings summery:

• भूताकाशम् (bhūtākāśam) - the elemental space, the physical space

• विशन्ति (viśanti) - they enter, they penetrate

• एते (ete) - these, they

• धूमश्रीः (dhūmaśrīḥ) - a line of smoke, a streak of smoke

• इव (iva) - like, as, as if

• च (ca) - and, also

• अम्बुदम् (ambudam) - cloud

• एकताम् (ekatām) - oneness, unity

• यान्ति (yānti) - they go, they attain

• जीवौघाः (jīvaughāḥ) - multitudes of individual souls, streams of life

• ब्रह्मणि (brahmaṇi) - in Brahman, in the ultimate reality

• आकाशमारुतैः (ākāśamārutaiḥ) - by space and airs

Words meanings and morphology

भूताकाशम् (bhūtākāśam) - the elemental space, the physical space

(noun)

Accusative, neuter, singular of bhūtākāśa

bhūtākāśa - elemental space, physical space

Compound type : tatpuruṣa (bhūta+ākāśa)

• bhūta – element, being, creature, past
  noun (neuter)
  Past Passive Participle
  From root √bhū (to be, exist)
  Root: bhū (class 1)
• ākāśa – space, ether, sky
  noun (masculine)

विशन्ति (viśanti) - they enter, they penetrate

(verb)

3rd person , plural, active, present (laṭ) of viś

Present active third person plural

Root: viś (class 6)

एते (ete) - these, they

(pronoun)

Nominative, masculine, plural of etad

etad - this, these

Note: Refers to jīvaughāḥ.

धूमश्रीः (dhūmaśrīḥ) - a line of smoke, a streak of smoke

(noun)

Nominative, feminine, singular of dhūmaśrī

dhūmaśrī - line of smoke, streak of smoke

Compound type : tatpuruṣa (dhūma+śrī)

• dhūma – smoke
  noun (masculine)
• śrī – luster, glory, beauty, line, streak
  noun (feminine)

इव (iva) - like, as, as if

(indeclinable)

च (ca) - and, also

(indeclinable)

अम्बुदम् (ambudam) - cloud

(noun)

Accusative, masculine, singular of ambuda

ambuda - cloud (giver of water)

Compound type : tatpuruṣa (ambu+da)

• ambu – water
  noun (neuter)
• da – giving, bestowing
  adjective (masculine)
  From root √dā (to give)
  Root: dā (class 3)

एकताम् (ekatām) - oneness, unity

(noun)

Accusative, feminine, singular of ekatā

ekatā - oneness, unity, identity

Derived from eka (one) + suffix tā (abstract noun).

यान्ति (yānti) - they go, they attain

(verb)

3rd person , plural, active, present (laṭ) of yā

Present active third person plural

Root: yā (class 2)

जीवौघाः (jīvaughāḥ) - multitudes of individual souls, streams of life

(noun)

Nominative, masculine, plural of jīvaugha

jīvaugha - multitude of souls, stream of life

Compound type : tatpuruṣa (jīva+ogha)

• jīva – individual soul, living being, life
  noun (masculine)
  Root: jīv (class 1)
• ogha – flood, multitude, stream, heap
  noun (masculine)

Note: The subject of yānti.

ब्रह्मणि (brahmaṇi) - in Brahman, in the ultimate reality

(noun)

Locative, neuter, singular of brahman

brahman - the Absolute, the ultimate reality, the universal spirit

Root: bṛh (class 1)

आकाशमारुतैः (ākāśamārutaiḥ) - by space and airs

(noun)

Instrumental, masculine, plural of ākāśamāruta

ākāśamāruta - space and air

Compound type : dvandva (ākāśa+māruta)

• ākāśa – space, ether
  noun (masculine)
• māruta – wind, air, god of wind
  noun (masculine)
  Root: mṛ

Note: Instrumental plural used to indicate "along with" or "by means of".