योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-81, verse-103

प्रकाशमनलं सूर्यं चिद्रूपं विद्धि राघव ।
जडात्मकं तमोरूपं विद्धि सोमशरीरकम् ॥ १०३ ॥

prakāśamanalaṃ sūryaṃ cidrūpaṃ viddhi rāghava ,
jaḍātmakaṃ tamorūpaṃ viddhi somaśarīrakam 103

103. prakāśam analam sūryam cit-rūpam viddhi rāghava
jaḍa-ātmakam tamaḥ-rūpam viddhi soma-śarīrakam

103. rāghava prakāśam analam sūryam cit-rūpam viddhi
jaḍa-ātmakam tamaḥ-rūpam soma-śarīrakam viddhi

103. O Rāghava, understand the sun, which is light and fire, to be the form of consciousness. Similarly, understand the moon's body to be of an inert nature and the form of darkness.

Words meanings summery:

• प्रकाशम् (prakāśam) - light, manifestation, splendor

• अनलम् (analam) - fire, heat

• सूर्यम् (sūryam) - sun, the sun god

• चित्-रूपम् (cit-rūpam) - form of consciousness

• विद्धि (viddhi) - know (imperative)

• राघव (rāghava) - O Rāghava, an epithet for Lord Rāma (O Rāghava (descendant of Raghu))

• जड-आत्मकम् (jaḍa-ātmakam) - of inert nature, having an inert essence

• तमः-रूपम् (tamaḥ-rūpam) - form of darkness

• विद्धि (viddhi) - know (imperative)

• सोम-शरीरकम् (soma-śarīrakam) - the moon's body (having the moon's body, related to the moon's body)

Words meanings and morphology

प्रकाशम् (prakāśam) - light, manifestation, splendor

(noun)

Accusative, masculine, singular of prakāśa

prakāśa - light, brightness, splendor, manifestation

From pra-kāś

Prefix: pra

Root: kāś (class 1)

Note: Object of viddhi

अनलम् (analam) - fire, heat

(noun)

Accusative, masculine, singular of anala

anala - fire, the god of fire, not water

Note: Object of viddhi

सूर्यम् (sūryam) - sun, the sun god

(noun)

Accusative, masculine, singular of sūrya

sūrya - sun, the sun god

Root: svar

Note: Object of viddhi

चित्-रूपम् (cit-rūpam) - form of consciousness

(noun)

Accusative, neuter, singular of cit-rūpa

cit-rūpa - form of consciousness, conscious form

Tatpuruṣa compound

Compound type : ṣaṣṭhī-tatpuruṣa (cit+rūpa)

• cit – consciousness, knowledge, understanding
  noun (feminine)
  From cit
  Root: cit (class 1)
• rūpa – form, appearance, nature
  noun (neuter)

Note: Predicative accusative, meaning 'as the form of consciousness'

विद्धि (viddhi) - know (imperative)

(verb)

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

Root: vid (class 2)

राघव (rāghava) - O Rāghava, an epithet for Lord Rāma (O Rāghava (descendant of Raghu))

(proper noun)

Vocative, masculine, singular of rāghava

rāghava - descendant of Raghu, an epithet of Rāma

Patronymic from Raghu

जड-आत्मकम् (jaḍa-ātmakam) - of inert nature, having an inert essence

(adjective)

Accusative, neuter, singular of jaḍa-ātmaka

jaḍa-ātmaka - of an inert nature, characterized by inertness

Bahuvrīhi or Tatpuruṣa compound

Compound type : bahuvrīhi (jaḍa+ātman)

• jaḍa – inert, dull, inanimate, cold
  adjective (masculine)
• ātman – self, soul, spirit, essential nature
  noun (masculine)
  Root: an (class 2)

Note: Agrees with soma-śarīrakam

तमः-रूपम् (tamaḥ-rūpam) - form of darkness

(noun)

Accusative, neuter, singular of tamas-rūpa

tamas-rūpa - form of darkness, dark in form

Tatpuruṣa compound

Compound type : ṣaṣṭhī-tatpuruṣa (tamas+rūpa)

• tamas – darkness, gloom, ignorance
  noun (neuter)
• rūpa – form, appearance, nature
  noun (neuter)

Note: Predicative accusative, meaning 'as the form of darkness'

विद्धि (viddhi) - know (imperative)

(verb)

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

Root: vid (class 2)

सोम-शरीरकम् (soma-śarīrakam) - the moon's body (having the moon's body, related to the moon's body)

(noun)

Accusative, neuter, singular of soma-śarīraka

soma-śarīraka - having the moon's body, lunar body

Tatpuruṣa compound with -ka suffix

Compound type : ṣaṣṭhī-tatpuruṣa (soma+śarīraka)

• soma – moon, Soma (deity/plant)
  noun (masculine)
• śarīraka – body (diminutive or emphasizing)
  noun (neuter)
  From śarīra + ka

Note: Object of viddhi