योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-40, verse-18

यथाभिमतमेवास्य भवत्यस्तमयोदयम् ।
आदिसर्गे स्वभावोत्थं पश्चाद्द्वैतैक्यकारणम् ॥ १८ ॥

yathābhimatamevāsya bhavatyastamayodayam ,
ādisarge svabhāvotthaṃ paścāddvaitaikyakāraṇam 18

18. yathābhimatam eva asya bhavati astamaya udayam
ādisarge svabhāvottham paścāt dvaitaikyakāraṇam

18. asya astamaya udayam yathābhimatam eva bhavati
ādisarge svabhāvottham paścāt dvaitaikyakāraṇam

18. Its (the mind-body's) manifestation and disappearance occur precisely as desired. In the primal creation, it arises from its own intrinsic nature (svabhāva); afterwards, it becomes the cause of both duality and unity.

Words meanings summery:

• यथाभिमतम् (yathābhimatam) - as desired, according to wish

• एव (eva) - indeed, precisely, only

• अस्य (asya) - of this

• भवति (bhavati) - becomes, happens, arises

• अस्तमय (astamaya) - disappearance, setting, cessation

• उदयम् (udayam) - appearance, rising, manifestation

• आदिसर्गे (ādisarge) - in the primal creation, in the original creation

• स्वभावोत्थम् (svabhāvottham) - arising from its own nature

• पश्चात् (paścāt) - afterwards, later, behind

• द्वैतैक्यकारणम् (dvaitaikyakāraṇam) - cause of duality and unity, that which causes duality and unity

Words meanings and morphology

यथाभिमतम् (yathābhimatam) - as desired, according to wish

(adjective)

Nominative, neuter, singular of yathābhimata

yathābhimata - as desired, according to one's wish

Compound 'yathā' (as, according to) + 'abhimata' (desired).

Compound type : Avyayībhāva / Tatpuruṣa (yathā+abhimata)

• yathā – as, according to, just as
  indeclinable
• abhimata – desired, wished, approved
  adjective (neuter)
  Past Passive Participle
  Derived from root 'man' (to think) with prefix 'abhi-' and suffix '-ta'.
  Prefix: abhi
  Root: man (class 4)

एव (eva) - indeed, precisely, only

(indeclinable)

अस्य (asya) - of this

(pronoun)

Genitive, neuter, singular of idam

idam - this, this here

Note: Refers to the cittaśarīra (mind-body) from the previous verse.

भवति (bhavati) - becomes, happens, arises

(verb)

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

Root 'bhū' (class 1) in present tense.

Root: bhū (class 1)

अस्तमय (astamaya) - disappearance, setting, cessation

(noun)

Nominative, masculine, singular of astamaya

astamaya - setting (of sun), disappearance, end, cessation

Compound 'asta' (set, gone) + 'maya' (dissolution, end).

Compound type : Tatpuruṣa (asta+maya)

• asta – setting, disappearance, home
  noun (masculine)
• maya – disappearance, dissolution, end
  noun (masculine)
  Derived from root 'mi' (to decay, vanish) with suffix '-a'.
  Root: mi (class 5)

उदयम् (udayam) - appearance, rising, manifestation

(noun)

Nominative, masculine, singular of udaya

udaya - rising, appearance, manifestation, origin

Derived from root 'i' (to go) with prefix 'ud-'.

Compound type : Tatpuruṣa (ud+aya)

• ud – up, upwards, forth
  indeclinable
  Prefix
• aya – going, motion, approach
  noun (masculine)
  Derived from root 'i' (to go) with suffix '-a'.
  Root: i (class 2)

आदिसर्गे (ādisarge) - in the primal creation, in the original creation

(noun)

Locative, masculine, singular of ādisarga

ādisarga - primal creation, original creation

Compound 'ādi' (first, primal) + 'sarga' (creation).

Compound type : Tatpuruṣa (ādi+sarga)

• ādi – beginning, first, primal
  noun (masculine)
• sarga – creation, emission, chapter
  noun (masculine)
  Derived from root 'sṛj' (to create, emit) with suffix '-a'.
  Root: sṛj (class 6)

स्वभावोत्थम् (svabhāvottham) - arising from its own nature

(adjective)

Nominative, neuter, singular of svabhāvottha

svabhāvottha - arising from one's own nature (svabhāva), natural

Compound 'svabhāva' (own nature) + 'uttha' (arisen).

Compound type : Tatpuruṣa (svabhāva+uttha)

• svabhāva – own being, inherent nature, constitution (svabhāva)
  noun (masculine)
  Compound 'sva' (own) + 'bhāva' (being, nature). 'bhāva' is from root 'bhū'.
  Root: bhū (class 1)
• uttha – arisen, produced from, standing up
  adjective (masculine)
  Past Passive Participle
  Derived from root 'sthā' (to stand) with prefix 'ud-'.
  Prefix: ud
  Root: sthā (class 1)

पश्चात् (paścāt) - afterwards, later, behind

(indeclinable)

द्वैतैक्यकारणम् (dvaitaikyakāraṇam) - cause of duality and unity, that which causes duality and unity

(noun)

Nominative, neuter, singular of dvaitaikyakāraṇa

dvaitaikyakāraṇa - cause of duality and unity

Compound 'dvaita' (duality) + 'aikya' (unity) + 'kāraṇa' (cause).

Compound type : Tatpuruṣa (dvaita+aikya+kāraṇa)

• dvaita – duality, state of being two
  noun (neuter)
  Derived from 'dvi' (two) + suffix '-ta'.
• aikya – unity, oneness, identity
  noun (neuter)
  Derived from 'eka' (one) + suffix '-ya'.
• kāraṇa – cause, reason, instrument
  noun (neuter)
  Derived from root 'kṛ' (to do, make) with suffix '-ana'.
  Root: kṛ (class 8)