योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-144, verse-39

इत्यकारणके सर्गे कचति ब्रह्मरूपिणि ।
परस्यावथवाभासे नित्यात्मावयवात्मना ॥ ३९ ॥

ityakāraṇake sarge kacati brahmarūpiṇi ,
parasyāvathavābhāse nityātmāvayavātmanā 39

39. iti akāraṇake sarge kacati brahmarūpiṇi
parasya athavā ābhāse nityātmāvayavātmanā

39. iti akāraṇake brahmarūpiṇi sarge,
athavā parasya ābhāse,
nityātmāvayavātmanā kacati.

39. Thus, this shines forth within the uncaused creation (sarga) that is Brahman-shaped, or in the manifestation (ābhāsa) of the Supreme, by means of its own nature as the eternal self's (ātman) constituents.

Words meanings summery:

• इति (iti) - thus, in this way, referring to, indicates

• अकारणके (akāraṇake) - in the uncaused, in that which is causeless

• सर्गे (sarge) - in creation, in emanation

• कचति (kacati) - shines, appears, is visible

• ब्रह्मरूपिणि (brahmarūpiṇi) - in the Brahman-shaped, having the form of Brahman

• परस्य (parasya) - of the Supreme, of the other, of the highest

• अथवा (athavā) - or, otherwise

• आभासे (ābhāse) - in the manifestation, in the appearance, in the light

• नित्यात्मावयवात्मना (nityātmāvayavātmanā) - by the nature of its eternal self's constituents, by its eternal self being its parts

Words meanings and morphology

इति (iti) - thus, in this way, referring to, indicates

(indeclinable)

Particle used to introduce or conclude a statement, or indicating 'thus'.

Note: Connects to the previous idea.

अकारणके (akāraṇake) - in the uncaused, in that which is causeless

(adjective)

Locative, masculine, singular of akāraṇaka

akāraṇaka - uncaused, without a cause, causeless

From a- (privative) + kāraṇa (cause) + ka (suffix).

Compound type : nañ-tatpuruṣa (a+kāraṇa)

• a – not, un-
  indeclinable
  Privative prefix.
• kāraṇa – cause, reason
  noun (neuter)
  From √kṛ (to do, make).
  Root: kṛ (class 8)

Note: Agrees with sarge.

सर्गे (sarge) - in creation, in emanation

(noun)

Locative, masculine, singular of sarga

sarga - creation, emanation, discharge

From √sṛj (to emit, create).

Root: sṛj (class 6)

Note: Locative of sarga.

कचति (kacati) - shines, appears, is visible

(verb)

3rd person , singular, active, present indicative (laṭ) of √kac

Present active indicative

From root √kac (to shine). 3rd person singular, present tense.

Root: kac (class 1)

ब्रह्मरूपिणि (brahmarūpiṇi) - in the Brahman-shaped, having the form of Brahman

(adjective)

Locative, masculine, singular of brahmarūpin

brahmarūpin - having the form or nature of Brahman, Brahman-shaped

Compound of brahma (Brahman) + rūpin (having the form of).

Compound type : karmadhāraya (brahman+rūpin)

• brahman – Brahman, the Absolute
  noun (neuter)
  Root: bṛh (class 1)
• rūpin – having form, in the form of, characterized by
  adjective (masculine)
  From rūpa (form) + in (possessive suffix).

Note: Agrees with sarge.

परस्य (parasya) - of the Supreme, of the other, of the highest

(adjective)

Genitive, masculine, singular of para

para - supreme, highest, ultimate, other, distant

Note: Refers to Brahman.

अथवा (athavā) - or, otherwise

(indeclinable)

Conjunction.

Note: Connects two alternative locative phrases.

आभासे (ābhāse) - in the manifestation, in the appearance, in the light

(noun)

Locative, masculine, singular of ābhāsa

ābhāsa - appearance, manifestation, light, semblance, reflection

From ā- + √bhā (to shine, appear).

Prefix: ā

Root: bhā (class 2)

नित्यात्मावयवात्मना (nityātmāvayavātmanā) - by the nature of its eternal self's constituents, by its eternal self being its parts

(noun)

Instrumental, masculine, singular of nityātmāvayavātman

nityātmāvayavātman - having its eternal self as its constituents, whose nature consists of eternal parts of self

Compound of nitya (eternal) + ātman (self, essence) + avayava (part, constituent) + ātman (self, nature). ātmanā is instrumental.

Compound type : bahuvrīhi (nitya+ātman+avayava+ātman)

• nitya – eternal, perpetual, constant
  adjective
• ātman – self, soul, essence, spirit
  noun (masculine)
• avayava – part, limb, constituent, member
  noun (masculine)
  From ava- + yū (to join, mix).
  Prefix: ava
  Root: yū (class 2)
• ātman – self, nature, essence
  noun (masculine)

Note: Indicates the means by which kacati happens.