योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-130, verse-24

अथोपविश्य तत्रैव स भासो ध्यानसंस्थितः ।
आत्मोदन्तमशेषेण सस्मार प्राक्तनं तनौ ॥ २४ ॥

athopaviśya tatraiva sa bhāso dhyānasaṃsthitaḥ ,
ātmodantamaśeṣeṇa sasmāra prāktanaṃ tanau 24

24. atha upaviśya tatra eva saḥ bhāsaḥ dhyānasaṃsthitaḥ
ātma udantam aśeṣeṇa sasmāra prāktanam tanau

24. atha saḥ bhāsaḥ tatra eva upaviśya dhyānasaṃsthitaḥ
tanau prāktanam ātma udantam aśeṣeṇa sasmāra

24. Then, having settled down right there, Bhāsa, absorbed in meditation (dhyāna), recalled his entire past history related to his physical form.

Words meanings summery:

• अथ (atha) - now, then, next, thereafter

• उपविश्य (upaviśya) - having sat down, having taken a seat

• तत्र (tatra) - there, in that place

• एव (eva) - indeed, only, just, exactly, even

• सः (saḥ) - he, that

• भासः (bhāsaḥ) - the proper name "Bhāsa" (light, splendor, appearance; the name Bhāsa)

• ध्यानसंस्थितः (dhyānasaṁsthitaḥ) - absorbed in meditation, established in contemplation

• आत्म (ātma) - his own (self, soul, spirit)

• उदन्तम् (udantam) - story, account, news, event

• अशेषेण (aśeṣeṇa) - completely, entirely, without remainder

• सस्मार (sasmāra) - remembered, recalled

• प्राक्तनम् (prāktanam) - former, previous, ancient, past

• तनौ (tanau) - in the body, regarding the person

Words meanings and morphology

अथ (atha) - now, then, next, thereafter

(indeclinable)

उपविश्य (upaviśya) - having sat down, having taken a seat

(indeclinable)

absolutive (gerund)

From prefix `upa` + root `viś` (to enter) + `lyaP` suffix

Prefix: upa

Root: viś (class 6)

तत्र (tatra) - there, in that place

(indeclinable)

एव (eva) - indeed, only, just, exactly, even

(indeclinable)

Note: Intensifies `tatra`.

सः (saḥ) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

भासः (bhāsaḥ) - the proper name "Bhāsa" (light, splendor, appearance; the name Bhāsa)

(proper noun)

Nominative, masculine, singular of bhāsa

bhāsa - light, splendor, appearance; a name

From root `bhās` (to shine)

Root: bhās (class 1)

ध्यानसंस्थितः (dhyānasaṁsthitaḥ) - absorbed in meditation, established in contemplation

(adjective)

Nominative, masculine, singular of dhyānasaṃsthita

dhyānasaṁsthita - absorbed in meditation (dhyāna), established in contemplation

Compound type : saptaṁī tatpuruṣa (dhyāna+saṃsthita)

• dhyāna – meditation, contemplation, thought
  noun (neuter)
  action noun
  From root `dhyāi` (to think, meditate) + `ana` suffix
  Root: dhyāi (class 1)
• saṃsthita – situated, placed, established, abiding, absorbed in
  adjective
  Past Passive Participle
  From prefix `sam` + root `sthā` (to stand) + `ta` suffix
  Prefix: sam
  Root: sthā (class 1)

Note: Describing Bhāsa.

आत्म (ātma) - his own (self, soul, spirit)

(noun)

of ātman

ātman - self, soul, spirit, essence

Note: First part of the compound `ātma-udantam`. `ātman` is used here in its stem form `ātma` before a vowel.

उदन्तम् (udantam) - story, account, news, event

(noun)

Accusative, masculine, singular of udanta

udanta - story, account, news, event, tidings

From `ud` + root `ant`

Note: Second part of the compound `ātma-udantam`.

अशेषेण (aśeṣeṇa) - completely, entirely, without remainder

(adjective)

Instrumental, masculine, singular of aśeṣa

aśeṣa - complete, entire, without remainder

Compound: `a` (negation) + `śeṣa` (remainder)

Compound type : nañ tatpuruṣa (a+śeṣa)

• a – not, un-
  indeclinable
• śeṣa – remainder, residue, balance
  noun (masculine)
  From root `śiṣ` (to leave)
  Root: śiṣ (class 7)

Note: Used adverbially.

सस्मार (sasmāra) - remembered, recalled

(verb)

3rd person , singular, active, perfect (liṭ) of smṛ

Root: smṛ (class 1)

Note: Reduplicated perfect.

प्राक्तनम् (prāktanam) - former, previous, ancient, past

(adjective)

Accusative, masculine, singular of prāktana

prāktana - former, previous, ancient, past

From `prāc` (east, former) + `tana` suffix

Note: Qualifies `udantam`.

तनौ (tanau) - in the body, regarding the person

(noun)

Locative, feminine, singular of tanu

tanu - body, person, form

Note: Refers to his physical existence or self.