योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-91, verse-48

देहादिदेहप्रतिभारूपात्म्यं त्यजता सता ।
विचार्यं प्रतिभासात्म चित्तं चित्तेन वै स्वयम् ॥ ४८ ॥

dehādidehapratibhārūpātmyaṃ tyajatā satā ,
vicāryaṃ pratibhāsātma cittaṃ cittena vai svayam 48

48. dehādidahaprabhārūpātmyam tyajatā satā vicāryam
pratibhāsātma cittam cittena vai svayam

48. satā dehādidahaprabhārūpātmyam tyajatā
pratibhāsātma cittam cittena svayam vai vicāryam

48. A discerning person, having abandoned the identification with the body and other apparent forms, should indeed investigate the mind (citta), which is inherently an appearance (ātman), using their own mind.

Words meanings summery:

• देहादिदहप्रभारूपात्म्यम् (dehādidahaprabhārūpātmyam) - the identification with the body and other apparent forms (the nature of appearance of the body, starting with the body)

• त्यजता (tyajatā) - by one abandoning

• सता (satā) - by a discerning person (by a good/wise person, by an existing one)

• विचार्यम् (vicāryam) - is to be investigated, is to be considered

• प्रतिभासात्म (pratibhāsātma) - whose inherent nature is appearance (ātman) (whose nature is appearance, self of appearance)

• चित्तम् (cittam) - mind, consciousness (citta)

• चित्तेन (cittena) - using their own mind (by the mind, by consciousness (citta))

• वै (vai) - indeed, certainly, verily

• स्वयम् (svayam) - by oneself, spontaneously

Words meanings and morphology

देहादिदहप्रभारूपात्म्यम् (dehādidahaprabhārūpātmyam) - the identification with the body and other apparent forms (the nature of appearance of the body, starting with the body)

(noun)

Accusative, neuter, singular of dehādidahaprabhārūpātmya

dehādidahaprabhārūpātmya - the nature of appearance of the body and similar forms

Compound type : tatpuruṣa (deha+ādi+deha+pratibhā+rūpa+ātmya)

• deha – body, physical form
  noun (masculine)
  Root: dih (class 2)
• ādi – beginning, etc., starting with
  indeclinable
• deha – body, physical form
  noun (masculine)
  Root: dih (class 2)
• pratibhā – appearance, manifestation, splendor
  noun (feminine)
  Prefix: prati
  Root: bhā (class 2)
• rūpa – form, nature, appearance
  noun (neuter)
• ātmya – the state or nature of the self
  noun (neuter)
  Derived from ātman + ṣyañ suffix.

त्यजता (tyajatā) - by one abandoning

(adjective)

Instrumental, masculine, singular of tyajat

tyajat - abandoning, forsaking

Present Active Participle

Derived from root √tyaj (to abandon, forsake) + śatṛ suffix.

Root: tyaj (class 1)

सता (satā) - by a discerning person (by a good/wise person, by an existing one)

(noun)

Instrumental, masculine, singular of sat

sat - existing, real, good, virtuous, wise

Present Active Participle

From √as (to be) + śatṛ suffix. Often used as a noun meaning a good or wise person.

Root: as (class 2)

Note: Refers to the agent performing the action of abandoning and investigating.

विचार्यम् (vicāryam) - is to be investigated, is to be considered

(adjective)

Nominative, neuter, singular of vicārya

vicārya - to be considered, to be investigated, to be pondered

Gerundive (N.P.P.)

Derived from vi-√car (to move, to go; with vi, to ponder, investigate) + ṇyat suffix.

Prefix: vi

Root: car (class 1)

Note: Functions as a predicate, indicating obligation or fitness.

प्रतिभासात्म (pratibhāsātma) - whose inherent nature is appearance (ātman) (whose nature is appearance, self of appearance)

(adjective)

Nominative, neuter, singular of pratibhāsātman

pratibhāsātman - whose nature is appearance (pratibhāsa: appearance, manifestation; ātman: self, nature)

Bahuvrīhi compound, meaning 'having appearance as its nature/self'.

Compound type : bahuvrīhi (pratibhāsa+ātman)

• pratibhāsa – appearance, manifestation, splendor
  noun (masculine)
  Derived from prati-√bhā (to appear, shine) + ghañ suffix.
  Prefix: prati
  Root: bhā (class 2)
• ātman – self, soul, spirit, essence, nature (ātman)
  noun (masculine)
  Root: an (class 2)

Note: Agrees with 'cittam'.

चित्तम् (cittam) - mind, consciousness (citta)

(noun)

Nominative, neuter, singular of citta

citta - mind, consciousness, thought (citta)

Past Passive Participle

Derived from √cit (to perceive, know, attend) + kta suffix, then nominalized.

Root: cit (class 1)

Note: The subject of the investigation.

चित्तेन (cittena) - using their own mind (by the mind, by consciousness (citta))

(noun)

Instrumental, neuter, singular of citta

citta - mind, consciousness, thought (citta)

Past Passive Participle

Derived from √cit (to perceive, know, attend) + kta suffix, then nominalized.

Root: cit (class 1)

Note: The instrument by which the investigation is performed.

वै (vai) - indeed, certainly, verily

(indeclinable)

Note: Emphasizes the necessity or certainty of the action.

स्वयम् (svayam) - by oneself, spontaneously

(indeclinable)

Adverbial form of 'sva' (self).

Note: Reinforces that the mind itself is both the object and instrument of investigation.