योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-19, verse-12

स्वप्नस्वावयवान्यत्वसदृशीं तां विभावयन् ।
विस्मृत्य चेतनां सत्तां तत्तामेवाशु गच्छति ॥ १२ ॥

svapnasvāvayavānyatvasadṛśīṃ tāṃ vibhāvayan ,
vismṛtya cetanāṃ sattāṃ tattāmevāśu gacchati 12

12. svapna-sva-avayava-anyatva-sadṛśīm tām vibhāvayan
vismṛtya cetanām sattām tat-tām eva āśu gacchati

12. tām svapna-sva-avayava-anyatva-sadṛśīm vibhāvayan
cetanām sattām vismṛtya āśu tat-tām eva gacchati

12. By perceiving that (creation) as being like the otherness of one's own body parts experienced in a dream, and having forgotten its own true conscious existence (cetanā-sattā), the individual soul (jīva) swiftly attains that very (unreal) state.

Words meanings summery:

• स्वप्न-स्व-अवयव-अन्यत्व-सदृशीम् (svapna-sva-avayava-anyatva-sadṛśīm) - as being like the otherness of one's own body parts experienced in a dream (resembling the otherness of one's own limbs in a dream, like the feeling of separation from one's own body in a dream)

• ताम् (tām) - that (unreal creation) (that, her, it)

• विभावयन् (vibhāvayan) - By perceiving (perceiving, contemplating, realizing)

• विस्मृत्य (vismṛtya) - having forgotten, after forgetting

• चेतनाम् सत्ताम् (cetanām sattām) - its own true conscious existence (cetanā-sattā) (conscious existence, the state of consciousness)

• तत्-ताम् (tat-tām) - that very (unreal) state (that state, that nature)

• एव (eva) - only, indeed, just, emphatic particle

• आशु (āśu) - swiftly (quickly, swiftly, immediately)

• गच्छति (gacchati) - attains (goes, attains, reaches)

Words meanings and morphology

स्वप्न-स्व-अवयव-अन्यत्व-सदृशीम् (svapna-sva-avayava-anyatva-sadṛśīm) - as being like the otherness of one's own body parts experienced in a dream (resembling the otherness of one's own limbs in a dream, like the feeling of separation from one's own body in a dream)

(adjective)

Accusative, feminine, singular of svapna-sva-avayava-anyatva-sadṛśī

svapna-sva-avayava-anyatva-sadṛśī - resembling the strangeness or separation of one's own body parts as experienced in a dream

Compound adjective, feminine form. sadṛśī is derived from sadṛś (like)

Compound type : tatpuruṣa (svapna-sva-avayava-anyatva+sadṛśī)

• svapna-sva-avayava-anyatva – the otherness of one's own body parts in a dream
  noun (neuter)
  Compound noun
• svapna – dream, sleep
  noun (masculine)
  Root: svap
• sva-avayava – one's own limb/part
  noun (masculine)
  Compound noun
• sva – one's own, self, kin
  pronoun (neuter)
  Reflexive pronoun
• avayava – limb, part, component
  noun (masculine)
  Derived from root yu- (to join) with prefix ava-
  Prefix: ava
  Root: yu
• anyatva – otherness, difference, distinctness
  noun (neuter)
  Abstract noun suffix -tva added to anya (other)
• sadṛśī – resembling, like, similar (feminine form)
  adjective (feminine)
  Derived from sadṛś (similar)
  Root: dṛś

Note: Modifies the implied feminine noun (e.g., śakti or māyā).

ताम् (tām) - that (unreal creation) (that, her, it)

(pronoun)

Accusative, feminine, singular of tad

tad - that

Demonstrative pronoun, feminine singular

विभावयन् (vibhāvayan) - By perceiving (perceiving, contemplating, realizing)

(adjective)

Nominative, masculine, singular of vibhāvayat

vibhāvayat - one who perceives/contemplates

Present active participle

Present active participle of root bhū- (to be) with prefix vi- and causative -āpaya-

Prefix: vi

Root: bhū (class 1)

Note: Functions adverbially, indicating the action of the subject (jīva).

विस्मृत्य (vismṛtya) - having forgotten, after forgetting

(indeclinable)

absolutive

Gerund (absolutive) of root smṛ- (to remember) with prefix vi-

Prefix: vi

Root: smṛ

चेतनाम् सत्ताम् (cetanām sattām) - its own true conscious existence (cetanā-sattā) (conscious existence, the state of consciousness)

(noun)

Accusative, feminine, singular of cetanā sattā

cetanā sattā - conscious existence, the state of being conscious

Compound (karmadhāraya) or two juxtaposed nouns, feminine singular

Compound type : karmadhāraya (cetanā+sattā)

• cetanā – consciousness, awareness
  noun (feminine)
  Derived from root cit- (to perceive)
  Root: cit
• sattā – existence, being, reality
  noun (feminine)
  Abstract noun suffix -tā added to sat (being)
  Root: as

Note: Direct object of vismṛtya.

तत्-ताम् (tat-tām) - that very (unreal) state (that state, that nature)

(noun)

Accusative, feminine, singular of tat-tā

tat-tā - the state of that, that-ness

Compound noun (tat = that, tā = state)

Compound type : karmadhāraya (tat+tā)

• tat – that
  pronoun (neuter)
  Demonstrative pronoun
• tā – state, condition, nature
  noun (feminine)
  Abstract noun suffix

Note: Direct object of gacchati.

एव (eva) - only, indeed, just, emphatic particle

(indeclinable)

Particle

Note: Emphasizes the attainment of 'that state'.

आशु (āśu) - swiftly (quickly, swiftly, immediately)

(indeclinable)

Adverb

गच्छति (gacchati) - attains (goes, attains, reaches)

(verb)

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

Present active indicative

3rd person singular, present tense, active voice

Root: gam (class 1)