योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-97, verse-21

अप्रबुद्धात्मविषयमाकाशत्रयकल्पनम् ।
कल्प्यते उपदेशार्थं प्रबुद्धविषयं न तु ॥ २१ ॥

aprabuddhātmaviṣayamākāśatrayakalpanam ,
kalpyate upadeśārthaṃ prabuddhaviṣayaṃ na tu 21

21. aprabuddha-ātma-viṣayam ākāśa-traya-kalpanam
kalpyate upadeśa-artham prabuddha-viṣayam na tu

21. ākāśa-traya-kalpanam aprabuddha-ātma-viṣayam upadeśa-artham kalpyate,
prabuddha-viṣayam na tu.

21. The conceptualization of the three types of space (ākāśa) is intended for those with an unenlightened individual self (ātman). It is conceived for the purpose of instruction, but not for those who are enlightened.

Words meanings summery:

• अप्रबुद्ध-आत्म-विषयम् (aprabuddha-ātma-viṣayam) - relating to the unenlightened self

• आकाश-त्रय-कल्पनम् (ākāśa-traya-kalpanam) - the conception of the three spaces

• कल्प्यते (kalpyate) - is imagined, is conceived, is created

• उपदेश-अर्थम् (upadeśa-artham) - for the purpose of instruction

• प्रबुद्ध-विषयम् (prabuddha-viṣayam) - relating to the enlightened

• न (na) - not, no

• तु (tu) - but, on the other hand, however

Words meanings and morphology

अप्रबुद्ध-आत्म-विषयम् (aprabuddha-ātma-viṣayam) - relating to the unenlightened self

(adjective)

Nominative, neuter, singular of aprabuddhātmaviṣaya

aprabuddhātmaviṣaya - relating to the unenlightened self

Compound type : bahuvrihi (a+prabuddha+ātman+viṣaya)

• a – not, un-
  indeclinable
  Negative particle
• prabuddha – awakened, enlightened
  adjective (masculine)
  Past Passive Participle
  From pra-√budh (to awaken, perceive)
  Prefix: pra
  Root: budh (class 1)
• ātman – self, soul, spirit
  noun (masculine)
• viṣaya – object, domain, sphere, subject matter
  noun (masculine)

Note: It qualifies `ākāśatrayakalpanam`.

आकाश-त्रय-कल्पनम् (ākāśa-traya-kalpanam) - the conception of the three spaces

(noun)

Nominative, neuter, singular of ākāśatrayakalpana

ākāśatrayakalpana - the conception of the three spaces

Compound type : tatpurusha (ākāśa+traya+kalpana)

• ākāśa – space, ether
  noun (masculine)
• traya – three, triad
  noun (neuter)
• kalpana – imagination, conception, creation
  noun (feminine)
  From √kḷp (to be arranged, form) + lyuṭ (ana)
  Root: kḷp (class 1)

Note: Subject of `kalpyate`.

कल्प्यते (kalpyate) - is imagined, is conceived, is created

(verb)

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

Present Passive

From √kḷp, 1st class, passive voice, 3rd person singular

Root: kḷp (class 1)

उपदेश-अर्थम् (upadeśa-artham) - for the purpose of instruction

(noun)

Accusative, masculine, singular of upadeśārtha

upadeśārtha - for the purpose of instruction

Accusative used adverbially to indicate purpose

Compound type : tatpurusha (upadeśa+artha)

• upadeśa – instruction, teaching
  noun (masculine)
  From upa-√diś (to point out, instruct)
  Prefix: upa
  Root: diś (class 6)
• artha – purpose, meaning, object
  noun (masculine)

Note: Used adverbially.

प्रबुद्ध-विषयम् (prabuddha-viṣayam) - relating to the enlightened

(adjective)

Nominative, neuter, singular of prabuddhaviṣaya

prabuddhaviṣaya - relating to the enlightened, for the enlightened

Compound type : bahuvrihi (prabuddha+viṣaya)

• prabuddha – awakened, enlightened
  adjective (masculine)
  Past Passive Participle
  From pra-√budh (to awaken, perceive)
  Prefix: pra
  Root: budh (class 1)
• viṣaya – object, domain, sphere, subject matter
  noun (masculine)

Note: It qualifies `ākāśatrayakalpanam` implicitly, as in "not for the enlightened".

न (na) - not, no

(indeclinable)

तु (tu) - but, on the other hand, however

(indeclinable)