योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-180, verse-12

तत्रास्त्यरण्यं विदितं मुक्तं तृणवनादिभिः ।
त्यक्ततेजस्तमोभ्रादिभूमाविव नभस्तलम् ॥ १२ ॥

tatrāstyaraṇyaṃ viditaṃ muktaṃ tṛṇavanādibhiḥ ,
tyaktatejastamobhrādibhūmāviva nabhastalam 12

12. tatra asti araṇyam viditam muktam tṛṇavana-ādibhiḥ
tyakta-tejas-tamas-abhra-ādi-bhūmau iva nabhastalam

12. tatra viditam araṇyam asti,
tṛṇavana-ādibhiḥ muktam,
tyakta-tejas-tamas-abhra-ādi-bhūmau iva nabhastalam.

12. There was a well-known forest, devoid of grasses, thickets, and similar growths. It was like the vast sky (nabhastalam) above a plane (bhūmāv) where radiance, darkness, and clouds, etc., had been relinquished.

Words meanings summery:

• तत्र (tatra) - in that place (Śrīparvata) (there)

• अस्ति (asti) - there is (is, exists)

• अरण्यम् (araṇyam) - a forest (forest, wilderness)

• विदितम् (viditam) - well-known (known, famous, understood)

• मुक्तम् (muktam) - devoid of, purified of (released, freed, devoid of, empty)

• तृणवन-आदिभिः (tṛṇavana-ādibhiḥ) - by grasses, thickets, and similar growths (by grasses, forests, etc.)

• त्यक्त-तेजस्-तमस्-अभ्र-आदि-भूमौ (tyakta-tejas-tamas-abhra-ādi-bhūmau) - on a plane of existence where radiance, darkness, clouds, etc., had been relinquished (on a plane of existence where brilliance, darkness, clouds, etc., have been relinquished)

• इव (iva) - like (like, as, as if)

• नभस्तलम् (nabhastalam) - the vast sky (the surface of the sky, the expanse of the sky)

Words meanings and morphology

तत्र (tatra) - in that place (Śrīparvata) (there)

(indeclinable)

From 'tad' (that) + suffix '-tra'

अस्ति (asti) - there is (is, exists)

(verb)

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

Root 'as' (to be)

Root: as (class 2)

अरण्यम् (araṇyam) - a forest (forest, wilderness)

(noun)

Nominative, neuter, singular of araṇya

araṇya - forest, wilderness

Note: Subject of 'asti'.

विदितम् (viditam) - well-known (known, famous, understood)

(adjective)

Nominative, neuter, singular of vidita

vidita - known, understood, perceived

Past Passive Participle

Formed from root 'vid' (to know) + suffix '-ta'

Root: vid (class 2)

Note: Agrees with 'araṇyam'.

मुक्तम् (muktam) - devoid of, purified of (released, freed, devoid of, empty)

(adjective)

Nominative, neuter, singular of mukta

mukta - released, freed, liberated, empty, devoid of

Past Passive Participle

Formed from root 'muc' (to release) + suffix 'ta'

Root: muc (class 6)

Note: Agrees with 'araṇyam'.

तृणवन-आदिभिः (tṛṇavana-ādibhiḥ) - by grasses, thickets, and similar growths (by grasses, forests, etc.)

(noun)

Instrumental, plural of tṛṇavanādi

tṛṇavanādi - grasses, forests, etc.

Compound noun ending with 'ādi' (etc.)

Compound type : dvandva/tatpurusha (tṛṇa+vana+ādi)

• tṛṇa – grass, straw
  noun (neuter)
• vana – forest, wood, thicket
  noun (neuter)
  Root: van (class 1)
• ādi – beginning, starting with, and so on, etc.
  noun (masculine)

Note: Instrument of being 'muktam'.

त्यक्त-तेजस्-तमस्-अभ्र-आदि-भूमौ (tyakta-tejas-tamas-abhra-ādi-bhūmau) - on a plane of existence where radiance, darkness, clouds, etc., had been relinquished (on a plane of existence where brilliance, darkness, clouds, etc., have been relinquished)

(noun)

Locative, feminine, singular of tyakta-tejas-tamas-abhra-ādi-bhūmi

tyakta-tejas-tamas-abhra-ādi-bhūmi - ground/plane from which light, darkness, clouds etc. are abandoned

Bahuvrīhi compound, where 'tyakta-tejas-tamas-abhra-ādi' qualifies 'bhūmi'.

Compound type : bahuvrīhi (tyakta+tejas+tamas+abhra+ādi+bhūmi)

• tyakta – abandoned, relinquished, forsaken
  adjective (neuter)
  Past Passive Participle
  From root 'tyaj' (to abandon) + suffix 'ta'
  Root: tyaj (class 1)
• tejas – light, brilliance, energy, spiritual power
  noun (neuter)
  Root: tij (class 1)
• tamas – darkness, ignorance, inertia
  noun (neuter)
  Root: tam (class 4)
• abhra – cloud, sky
  noun (neuter)
  Root: abh
• ādi – beginning, starting with, and so on, etc.
  noun (masculine)
• bhūmi – earth, ground, land, plane (of existence)
  noun (feminine)
  Root: bhū (class 1)

Note: Refers to a specific kind of ground or plane.

इव (iva) - like (like, as, as if)

(indeclinable)

नभस्तलम् (nabhastalam) - the vast sky (the surface of the sky, the expanse of the sky)

(noun)

Nominative, neuter, singular of nabhastala

nabhastala - the surface of the sky, the sky's expanse

Compound of 'nabhas' (sky) and 'tala' (surface, plane)

Compound type : tatpurusha (nabhas+tala)

• nabhas – sky, atmosphere, cloud
  noun (neuter)
  Root: nabh (class 1)
• tala – surface, plane, palm of hand, sole of foot
  noun (neuter)
  Root: tal (class 10)

Note: Object of comparison with the forest.