योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-17, verse-31

पपाताथ महारम्भा सा तां नरपतेः सभाम् ।
व्योमात्मिका व्योममयीं मिहिकेवाम्बराटवीम् ॥ ३१ ॥

papātātha mahārambhā sā tāṃ narapateḥ sabhām ,
vyomātmikā vyomamayīṃ mihikevāmbarāṭavīm 31

31. papāta atha mahārambhā sā tām narapateḥ sabhām
vyomātmikā vyomamayīm mihikā iva ambarāṭavīm

31. atha mahārambhā vyomātmikā sā mihikā iva
vyomamayīm ambarāṭavīm narapateḥ tām sabhām papāta

31. Then, she, grand in her design and whose essence was space (vyoman), descended into that ethereal assembly hall of the king, just as mist settles upon a celestial grove.

Words meanings summery:

• पपात (papāta) - fell, descended

• अथ (atha) - then, now, moreover

• महारम्भा (mahārambhā) - grand in undertaking, great in design, having a grand beginning

• सा (sā) - Referring to the subtle body or mental projection of the king's wife. (she, that (feminine))

• ताम् (tām) - Referring to the king's assembly hall. (that (feminine accusative singular))

• नरपतेः (narapateḥ) - of the king, of the lord of men

• सभाम् (sabhām) - assembly, court, hall

• व्योमात्मिका (vyomātmikā) - sky-natured, whose essence is space

• व्योममयीम् (vyomamayīm) - made of space, ethereal, celestial

• मिहिका (mihikā) - mist, fog, frost

• इव (iva) - like, as, as if

• अम्बराटवीम् (ambarāṭavīm) - sky-forest, celestial grove

Words meanings and morphology

पपात (papāta) - fell, descended

(verb)

3rd person , singular, active, perfect (Lit) of pat

Perfect Active

Root pat, perfect active 3rd person singular, reduplicated form.

Root: pat (class 1)

अथ (atha) - then, now, moreover

(indeclinable)

महारम्भा (mahārambhā) - grand in undertaking, great in design, having a grand beginning

(adjective)

Nominative, feminine, singular of mahārambha

mahārambha - great undertaking, grand enterprise, magnificent design

Compound adjective, feminine form. Refers to one with a great beginning or undertaking.

Compound type : bahuvrīhi (mahā+ārambha)

• mahā – great, large, mighty, extensive
  adjective
• ārambha – beginning, undertaking, enterprise, design
  noun (masculine)
  From prefix ā + root rabh (to begin).
  Prefix: ā
  Root: rabh (class 1)

सा (sā) - Referring to the subtle body or mental projection of the king's wife. (she, that (feminine))

(pronoun)

Nominative, feminine, singular of tad

tad - that, he, she, it, that one

ताम् (tām) - Referring to the king's assembly hall. (that (feminine accusative singular))

(pronoun)

Accusative, feminine, singular of tad

tad - that, he, she, it, that one

नरपतेः (narapateḥ) - of the king, of the lord of men

(noun)

Genitive, masculine, singular of narapati

narapati - king, ruler, lord of men

Compound noun.

Compound type : tatpuruṣa (nara+pati)

• nara – man, human being
  noun (masculine)
• pati – lord, master, husband, owner
  noun (masculine)

सभाम् (sabhām) - assembly, court, hall

(noun)

Accusative, feminine, singular of sabhā

sabhā - assembly, council, court, hall, place of meeting

व्योमात्मिका (vyomātmikā) - sky-natured, whose essence is space

(adjective)

Nominative, feminine, singular of vyomātmaka

vyomātmaka - having the nature of space, whose essence is sky, ethereal

Compound adjective, feminine form.

Compound type : bahuvrīhi (vyoman+ātmaka)

• vyoman – sky, atmosphere, space
  noun (neuter)
• ātmaka – consisting of, having the nature of, relating to (ātman)
  adjective
  Suffix -ka added to ātman (self, soul).

व्योममयीम् (vyomamayīm) - made of space, ethereal, celestial

(adjective)

Accusative, feminine, singular of vyomamaya

vyomamaya - consisting of space, made of sky, ethereal, illusory

Suffix -maya (meaning 'made of' or 'consisting of') added to vyoman. Feminine form.

Compound type : tatpuruṣa (vyoman+maya)

• vyoman – sky, atmosphere, space
  noun (neuter)
• maya – made of, consisting of, full of (suffix)
  suffix
  Suffix indicating material or abundance.

Note: Modifies 'sabhām'.

मिहिका (mihikā) - mist, fog, frost

(noun)

Nominative, feminine, singular of mihikā

mihikā - mist, fog, frost, hoar-frost

इव (iva) - like, as, as if

(indeclinable)

अम्बराटवीम् (ambarāṭavīm) - sky-forest, celestial grove

(noun)

Accusative, feminine, singular of ambarāṭavī

ambarāṭavī - sky-forest, celestial grove

Compound noun, feminine form.

Compound type : tatpuruṣa (ambara+aṭavī)

• ambara – sky, atmosphere, garment
  noun (neuter)
• aṭavī – forest, jungle, grove
  noun (feminine)

Note: Object of the implied verb 'falls' in the simile.