योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-25, verse-17

अद्यापरिमिताकारकारणैकतयात्मनि ।
सर्वतः सुखमभ्येति रसायनमिवार्णवे ॥ १७ ॥

adyāparimitākārakāraṇaikatayātmani ,
sarvataḥ sukhamabhyeti rasāyanamivārṇave 17

17. adya aparimitākārakāraṇaikatayā ātmani
sarvataḥ sukham abhyeti rasāyanam iva arṇave

17. adya ātmani aparimitākārakāraṇaikatayā
sukham sarvataḥ arṇave rasāyanam iva abhyeti

17. Now, through the singular nature of the cause of boundless forms, happiness approaches the Self (ātman) from all sides, like an elixir (rasāyana) merging into the ocean.

Words meanings summery:

• अद्य (adya) - now (today, now)

• अपरिमिताकारकारणैकतया (aparimitākārakāraṇaikatayā) - through the singular nature of the cause of boundless forms (by the oneness of the cause of limitless form)

• आत्मनि (ātmani) - in the Self (ātman) (in the self, in the soul, in the Self)

• सर्वतः (sarvataḥ) - from all sides, from all directions (from all sides, everywhere, completely)

• सुखम् (sukham) - happiness (happiness, joy, comfort, ease)

• अभ्येति (abhyeti) - approaches (approaches, attains, comes near)

• रसायनम् (rasāyanam) - elixir (rasāyana) (elixir, tonic, mercury, chemical preparation, path of essence)

• इव (iva) - like (like, as, as if)

• अर्णवे (arṇave) - into the ocean (in the ocean, in the sea)

Words meanings and morphology

अद्य (adya) - now (today, now)

(indeclinable)

अपरिमिताकारकारणैकतया (aparimitākārakāraṇaikatayā) - through the singular nature of the cause of boundless forms (by the oneness of the cause of limitless form)

(noun)

Instrumental, feminine, singular of aparimitākārakāraṇaikatā

aparimitākārakāraṇaikatā - oneness of the cause of limitless form

Compound type : tatpuruṣa (aparimitākāra+kāraṇa+ekatā)

• aparimita – boundless, immeasurable, limitless
  adjective
  Past Passive Participle
  Prefix 'a-' (negation) + 'pari' (around) + root 'mā' (to measure) + 'kta' suffix.
  Prefixes: a+pari
  Root: mā (class 3)
• ākāra – form, shape, appearance
  noun (masculine)
  Prefix: ā
  Root: kṛ (class 8)
• kāraṇa – cause, reason, instrument
  noun (neuter)
  From root 'kṛ' (to do, to make) with 'ana' suffix.
  Root: kṛ (class 8)
• ekatā – oneness, unity, singularity
  noun (feminine)
  From 'eka' (one) + 'tā' (abstract suffix).

आत्मनि (ātmani) - in the Self (ātman) (in the self, in the soul, in the Self)

(noun)

Locative, masculine, singular of ātman

ātman - self, soul, spirit, the Self

Root: an (class 2)

सर्वतः (sarvataḥ) - from all sides, from all directions (from all sides, everywhere, completely)

(indeclinable)

Derived from 'sarva' (all) with the suffix 'tas'.

सुखम् (sukham) - happiness (happiness, joy, comfort, ease)

(noun)

Nominative, neuter, singular of sukha

sukha - happiness, joy, comfort, ease

Note: Subject of the verb 'abhyeti'.

अभ्येति (abhyeti) - approaches (approaches, attains, comes near)

(verb)

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

Prefix: abhi

Root: i (class 2)

रसायनम् (rasāyanam) - elixir (rasāyana) (elixir, tonic, mercury, chemical preparation, path of essence)

(noun)

Nominative, neuter, singular of rasāyana

rasāyana - elixir, tonic, mercury, chemical preparation, path of essence

Compound of 'rasa' (juice, essence, mercury) and 'ayana' (path, course, going).

Compound type : tatpuruṣa (rasa+ayana)

• rasa – juice, essence, taste, fluid, mercury
  noun (masculine)
  Root: ras (class 1)
• ayana – path, course, going, abode
  noun (neuter)
  From root 'i' (to go) + 'ana' suffix.
  Root: i (class 2)

Note: Used in comparison with 'iva'.

इव (iva) - like (like, as, as if)

(indeclinable)

अर्णवे (arṇave) - into the ocean (in the ocean, in the sea)

(noun)

Locative, masculine, singular of arṇava

arṇava - ocean, sea

Note: Here 'in' implies 'into' for the analogy of merging.