योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-12, verse-23

स्पन्दात्मनि विकल्पांशे पतिताऽसत्यरूपिणि ।
संवित्प्रसरति भ्रान्तौ तैलबिन्दुरिवाम्भसि ॥ २३ ॥

spandātmani vikalpāṃśe patitā'satyarūpiṇi ,
saṃvitprasarati bhrāntau tailabindurivāmbhasi 23

23. spandātmani vikalpāṃśe patitā asatyarūpiṇi saṃvit
prasarati bhrāntau tailabinduḥ iva ambhasi

23. saṃvit patitā bhrāntau spandātmani vikalpāṃśe
asatyarūpiṇi prasarati tailabinduḥ iva ambhasi

23. Consciousness (saṃvit), having fallen into illusion (bhrānti)—which is characterized by the intrinsic nature (ātman) of pulsation, is an aspect of mental constructs (vikalpa), and takes the form of unreality—spreads like a drop of oil in water (ambhasi).

Words meanings summery:

• स्पन्दात्मनि (spandātmani) - in the intrinsic nature (ātman) of pulsation/vibration

• विकल्पांशे (vikalpāṁśe) - in the portion/aspect of mental constructs

• पतिता (patitā) - fallen, descended, situated

• असत्यरूपिणि (asatyarūpiṇi) - in the form of unreality/falsehood

• संवित् (saṁvit) - consciousness, knowledge

• प्रसरति (prasarati) - spreads, diffuses, extends

• भ्रान्तौ (bhrāntau) - in illusion, in error, in confusion

• तैलबिन्दुः (tailabinduḥ) - a drop of oil

• इव (iva) - like, as, as if

• अम्भसि (ambhasi) - in water

Words meanings and morphology

स्पन्दात्मनि (spandātmani) - in the intrinsic nature (ātman) of pulsation/vibration

(noun)

Locative, feminine, singular of spandātman

spandātman - intrinsic nature (ātman) of pulsation/vibration

compound of spanda (pulsation) and ātman (nature)

Compound type : ṣaṣṭhī-tatpuruṣa (spanda+ātman)

• spanda – vibration, pulsation, throbbing, movement
  noun (masculine)
  from √spand
  Root: spand (class 1)
• ātman – self, soul, spirit, intrinsic nature
  noun (masculine)
  Root: an (class 2)

Note: Agrees with `bhrāntau`.

विकल्पांशे (vikalpāṁśe) - in the portion/aspect of mental constructs

(noun)

Locative, feminine, singular of vikalpāṃśa

vikalpāṁśa - aspect/part of mental constructs

compound of vikalpa (mental construct) and aṃśa (part/aspect)

Compound type : ṣaṣṭhī-tatpuruṣa (vikalpa+aṃśa)

• vikalpa – mental construct, imagination, doubt, option
  noun (masculine)
  from vi-√kḷp
  Prefix: vi
  Root: kḷp (class 1)
• aṃśa – part, portion, aspect
  noun (masculine)

Note: The compound noun `vikalpāṃśa` takes the locative ending to agree with `bhrāntau`.

पतिता (patitā) - fallen, descended, situated

(adjective)

Nominative, feminine, singular of patita

patita - fallen, dropped, descended, situated

Past Passive Participle

from √pat

Root: pat (class 1)

Note: Agrees with `saṃvit`.

असत्यरूपिणि (asatyarūpiṇi) - in the form of unreality/falsehood

(adjective)

Locative, feminine, singular of asatyarūpin

asatyarūpin - having the form of unreality/falsehood

compound of asatya (unreality/falsehood) and rūpin (having the form of)

Compound type : bahuvrīhi (asatya+rūpin)

• asatya – unreality, falsehood, untrue
  noun (neuter)
  a (not) + satya (truth)
• rūpin – having the form of, characterized by
  adjective (feminine)
  from rūpa (form) + -in suffix

Note: Agrees with `bhrāntau`.

संवित् (saṁvit) - consciousness, knowledge

(noun)

Nominative, feminine, singular of saṃvid

saṁvid - consciousness, knowledge, understanding

from sam-√vid (to know together)

Prefix: sam

Root: vid (class 2)

Note: Subject of the sentence.

प्रसरति (prasarati) - spreads, diffuses, extends

(verb)

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

Present active indicative

from pra-√sṛ

Prefix: pra

Root: sṛ (class 1)

भ्रान्तौ (bhrāntau) - in illusion, in error, in confusion

(noun)

Locative, feminine, singular of bhrānti

bhrānti - illusion, error, confusion, delusion

from √bhram

Root: bhram (class 1)

Note: Location where consciousness spreads.

तैलबिन्दुः (tailabinduḥ) - a drop of oil

(noun)

Nominative, masculine, singular of tailabindu

tailabindu - a drop of oil

compound of taila (oil) and bindu (drop)

Compound type : ṣaṣṭhī-tatpuruṣa (taila+bindu)

• taila – oil, sesame oil
  noun (neuter)
  from tila (sesame)
• bindu – drop, dot, particle
  noun (masculine)

Note: Subject of the simile.

इव (iva) - like, as, as if

(indeclinable)

अम्भसि (ambhasi) - in water

(noun)

Locative, neuter, singular of ambhas

ambhas - water

s-stem noun.

Note: Location for the comparison.