योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-65, verse-2

भावाभावलसद्दोलं तेनायमवलोक्यते ।
सर्गः सदसदाभासः पूर्वगन्ध इवेच्छया ॥ २ ॥

bhāvābhāvalasaddolaṃ tenāyamavalokyate ,
sargaḥ sadasadābhāsaḥ pūrvagandha ivecchayā 2

2. bhāvābhāvalasaddolam tena ayam avalokyate
sargaḥ sadasadābhāsaḥ pūrvagandhaḥ iva icchayā

2. ayam sargaḥ bhāvābhāvalasaddolam sadasadābhāsaḥ
pūrvagandhaḥ iva tena icchayā avalokyate

2. By that (supreme consciousness), this creation is perceived, swinging between existence and non-existence, appearing as both real and unreal, just like a faint previous impression (pūrvagandha) manifests by will (icchā).

Words meanings summery:

• भावाभावलसद्दोलम् (bhāvābhāvalasaddolam) - Describing the nature of creation as transient and illusory. (swaying between existence and non-existence, oscillating between being and non-being, appearing and disappearing)

• तेन (tena) - by that supreme consciousness (ātman/brahman) (by that, by it)

• अयम् (ayam) - this (creation) (this, this one)

• अवलोक्यते (avalokyate) - is seen, is perceived, is observed

• सर्गः (sargaḥ) - creation, emanation, world

• सदसदाभासः (sadasadābhāsaḥ) - appearing as existent and non-existent, seeming real and unreal

• पूर्वगन्धः (pūrvagandhaḥ) - a subtle impression or latency from past experiences or potential, like a memory or an imprint. (a previous scent, a former impression, a subtle trace)

• इव (iva) - like, as, as if

• इच्छया (icchayā) - by its own will (referring to the will of consciousness/ātman, which drives creation) (by will, by desire, by wish)

Words meanings and morphology

भावाभावलसद्दोलम् (bhāvābhāvalasaddolam) - Describing the nature of creation as transient and illusory. (swaying between existence and non-existence, oscillating between being and non-being, appearing and disappearing)

(adjective)

Accusative, neuter, singular of bhāvābhāvalasaddola

bhāvābhāvalasaddola - oscillating between existence and non-existence

Compound type : bahuvrihi (bhāva+abhāva+lasat+dola)

• bhāva – existence, being, state, emotion
  noun (masculine)
  From root bhū 'to be'
  Root: bhū (class 1)
• abhāva – non-existence, absence, negation
  noun (masculine)
  Compound: a (negation) + bhāva (existence)
  Prefix: a
• lasat – shining, playing, swaying
  adjective
  Present Active Participle
  From root las 'to shine, sport, swing'
  Root: las (class 1)
• dola – swing, oscillation
  noun (feminine)
  Root: dul (class 1)

Note: Functions adverbially, describing the manner in which creation is perceived.

तेन (tena) - by that supreme consciousness (ātman/brahman) (by that, by it)

(pronoun)

Instrumental, masculine, singular of tad

tad - that, it

Note: Refers to the implicit agent, the supreme consciousness, as the perceiver of creation.

अयम् (ayam) - this (creation) (this, this one)

(pronoun)

Nominative, masculine, singular of idam

idam - this, this one

Note: Refers to 'sargaḥ' (creation).

अवलोक्यते (avalokyate) - is seen, is perceived, is observed

(verb)

3rd person , singular, passive, present (laṭ) of avalok

Prefix: ava

Root: lok (class 10)

Note: The subject of the passive verb is 'sargaḥ'.

सर्गः (sargaḥ) - creation, emanation, world

(noun)

Nominative, masculine, singular of sarga

sarga - creation, emanation, pouring forth, discharge, world

From root sṛj 'to emit, create'

Root: sṛj (class 6)

Note: Subject of the passive verb 'avalokyate'.

सदसदाभासः (sadasadābhāsaḥ) - appearing as existent and non-existent, seeming real and unreal

(adjective)

Nominative, masculine, singular of sadasadābhāsa

sadasadābhāsa - appearance of being and non-being, seeming real and unreal

Compound type : dvandva (sat+asat+ābhāsa)

• sat – existent, real, good, true
  adjective
  Present Active Participle
  From root as 'to be'
  Root: as (class 2)
• asat – non-existent, unreal, bad
  adjective
  Present Active Participle (negated)
  Compound: a (negation) + sat (existent)
  Prefix: a
• ābhāsa – appearance, semblance, reflection, illusion
  noun (masculine)
  From root bhās 'to shine' with prefix ā
  Prefix: ā
  Root: bhās (class 1)

Note: Agrees with 'sargaḥ'.

पूर्वगन्धः (pūrvagandhaḥ) - a subtle impression or latency from past experiences or potential, like a memory or an imprint. (a previous scent, a former impression, a subtle trace)

(noun)

Nominative, masculine, singular of pūrvagandha

pūrvagandha - previous scent, former impression, subtle trace

Compound type : karma-dhāraya (pūrva+gandha)

• pūrva – previous, former, prior
  adjective
• gandha – smell, scent, fragrance; a trace, a subtle impression
  noun (masculine)
  Root: gandh (class 10)

Note: Forms part of a simile: 'like a previous scent'.

इव (iva) - like, as, as if

(indeclinable)

Note: Used for comparison.

इच्छया (icchayā) - by its own will (referring to the will of consciousness/ātman, which drives creation) (by will, by desire, by wish)

(noun)

Instrumental, feminine, singular of icchā

icchā - will, desire, wish, intention

From root iṣ 'to wish, desire'

Root: iṣ (class 6)

Note: Indicates the agency or means by which the creation manifests.