योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-124, verse-19

स्वसंकल्पमयाकारं यावत्संसारभावि यत् ।
चित्तं तद्विद्धि जीवस्य रूपं रामातिवाहिकम् ॥ १९ ॥

svasaṃkalpamayākāraṃ yāvatsaṃsārabhāvi yat ,
cittaṃ tadviddhi jīvasya rūpaṃ rāmātivāhikam 19

19. sva-saṅkalpa-maya-ākāram yāvat saṃsāra-bhāvi yat
cittam tat viddhi jīvasya rūpam rāma ativāhikam

19. rāma,
yat sva-saṅkalpa-maya-ākāram saṃsāra-bhāvi cittam,
tat jīvasya ativāhikam rūpam viddhi.

19. O Rama, know that the mind (citta), which is characterized by its own volitional thoughts and persists as long as the cycle of transmigration (saṃsāra) endures, is the subtle body (ativāhika) form of the individual soul (jīva).

Words meanings summery:

• स्व-सङ्कल्प-मय-आकारम् (sva-saṅkalpa-maya-ākāram) - having the form consisting of one's own volitional thoughts

• यावत् (yāvat) - as long as, while, as much as

• संसार-भावि (saṁsāra-bhāvi) - existing in the cycle of transmigration

• यत् (yat) - which, whatever

• चित्तम् (cittam) - mind, consciousness, thought

• तत् (tat) - that, it

• विद्धि (viddhi) - know, understand

• जीवस्य (jīvasya) - of the living being, of the individual soul (jīva)

• रूपम् (rūpam) - form, shape, nature, characteristic

• राम (rāma) - O Rama

• अतिवाहिकम् (ativāhikam) - subtle, transcendent, belonging to the subtle body

Words meanings and morphology

स्व-सङ्कल्प-मय-आकारम् (sva-saṅkalpa-maya-ākāram) - having the form consisting of one's own volitional thoughts

(adjective)

Accusative, neuter, singular of sva-saṅkalpa-maya-ākāra

sva-saṅkalpa-maya-ākāra - having the form consisting of one's own volitional thoughts; characterized by one's own imagination

Compound type : Karmadharaya/Tatpurusha (sva+saṅkalpa+maya+ākāra)

• sva – own, one's own
  pronoun
• saṅkalpa – volition, intention, determination, thought, imagination
  noun (masculine)
  Prefix: sam
  Root: kḷp (class 1)
• maya – made of, consisting of, full of
  suffix/adjective
  Suffix indicating material or abundance.
• ākāra – form, shape, appearance, external aspect
  noun (masculine)
  Prefix: ā
  Root: kṛ (class 8)

यावत् (yāvat) - as long as, while, as much as

(indeclinable)

संसार-भावि (saṁsāra-bhāvi) - existing in the cycle of transmigration

(adjective)

Nominative, neuter, singular of saṃsāra-bhāvin

saṁsāra-bhāvin - existing in the world, born in transmigration

Compound type : Tatpurusha (saṃsāra+bhāvin)

• saṃsāra – cycle of rebirth, transmigration, worldly existence
  noun (masculine)
  Prefix: sam
  Root: sṛ (class 1)
• bhāvin – being, existing, likely to be, future
  adjective
  Derived from the root bhū (to be).
  Root: bhū (class 1)

Note: Agrees with 'cittam'.

यत् (yat) - which, whatever

(pronoun)

Nominative, neuter, singular of yad

yad - which, what

Note: Relative pronoun referring to 'cittam'.

चित्तम् (cittam) - mind, consciousness, thought

(noun)

Nominative, neuter, singular of citta

citta - mind, consciousness, thought, intellect

Past Passive Participle

Derived from the root 'cit' (to perceive, understand) with the suffix 'kta'.

Root: cit (class 1)

तत् (tat) - that, it

(pronoun)

Accusative, neuter, singular of tad

tad - that, it, this

Note: Refers to 'cittam' as the object of 'viddhi'.

विद्धि (viddhi) - know, understand

(verb)

2nd person , singular, active, imperative (loṭ) of vid

Root verb from the ad-group (2nd class).

Root: vid (class 2)

जीवस्य (jīvasya) - of the living being, of the individual soul (jīva)

(noun)

Genitive, masculine, singular of jīva

jīva - living being, individual soul, life

Root: jīv (class 1)

रूपम् (rūpam) - form, shape, nature, characteristic

(noun)

Accusative, neuter, singular of rūpa

rūpa - form, shape, appearance, nature, figure

राम (rāma) - O Rama

(proper noun)

Vocative, masculine, singular of rāma

rāma - Rama (proper name); pleasing, charming

Root: ram (class 1)

अतिवाहिकम् (ativāhikam) - subtle, transcendent, belonging to the subtle body

(adjective)

Accusative, neuter, singular of ativāhika

ativāhika - subtle (body), transcendent, causing to pass over

Derived from 'ati-vaha' (to carry over, transport).

Prefix: ati

Root: vah (class 1)

Note: Agrees with 'rūpam'.