योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-3, verse-20

ब्रह्मा संकल्पपुरुषः पृथ्व्यादिरहिताकृतिः ।
केवलं चित्तमात्रात्मा कारणं त्रिजगत्स्थितेः ॥ २० ॥

brahmā saṃkalpapuruṣaḥ pṛthvyādirahitākṛtiḥ ,
kevalaṃ cittamātrātmā kāraṇaṃ trijagatsthiteḥ 20

20. brahmā saṅkalpapuruṣaḥ pṛthvyādirahitākṛtiḥ
kevalam cittamātrātmā kāraṇam trijagatsthiteḥ

20. brahmā saṅkalpapuruṣaḥ pṛthvyādirahitākṛtiḥ
kevalam cittamātrātmā trijagatsthiteḥ kāraṇam

20. Brahmā is a person (puruṣa) born of pure intention (saṅkalpa), whose form is devoid of material elements like earth. He is essentially pure mind-nature (citta-mātra-ātman) and the fundamental cause of the sustenance of the three worlds.

Words meanings summery:

• ब्रह्मा (brahmā) - Brahmā (the creator deity)

• सङ्कल्पपुरुषः (saṅkalpapuruṣaḥ) - a person (puruṣa) born of pure intention (saṅkalpa) (personification of intention/resolve)

• पृथ्व्यादिरहिताकृतिः (pṛthvyādirahitākṛtiḥ) - whose form is devoid of earth and other elements

• केवलम् (kevalam) - only, merely, purely, alone

• चित्तमात्रात्मा (cittamātrātmā) - whose intrinsic nature (ātman) is pure mind (citta-mātra) (whose nature is merely mind)

• कारणम् (kāraṇam) - cause, reason, instrument

• त्रिजगत्स्थितेः (trijagatsthiteḥ) - of the sustenance of the three worlds (of the existence of the three worlds)

Words meanings and morphology

ब्रह्मा (brahmā) - Brahmā (the creator deity)

(proper noun)

Nominative, masculine, singular of brahman

brahman - Brahma (the creator god), a priest

सङ्कल्पपुरुषः (saṅkalpapuruṣaḥ) - a person (puruṣa) born of pure intention (saṅkalpa) (personification of intention/resolve)

(noun)

Nominative, masculine, singular of saṅkalpapuruṣa

saṅkalpapuruṣa - a person of resolve or intention

Compound type : tatpuruṣa (saṅkalpa+puruṣa)

• saṅkalpa – resolve, intention, conception, volition
  noun (masculine)
  from sam-kḷp
  Prefix: sam
  Root: kḷp (class 1)
• puruṣa – person, male, spirit, cosmic person
  noun (masculine)

पृथ्व्यादिरहिताकृतिः (pṛthvyādirahitākṛtiḥ) - whose form is devoid of earth and other elements

(noun)

Nominative, feminine, singular of pṛthvyādirahitākṛti

pṛthvyādirahitākṛti - form devoid of earth etc.

Compound type : bahuvrīhi (pṛthvī+ādi+rahita+ākṛti)

• pṛthvī – earth, ground
  noun (feminine)
• ādi – beginning, and so on, etc.
  indeclinable
• rahita – devoid of, free from, abandoned
  adjective (masculine)
  Past Passive Participle
  from rah
  Root: rah (class 1)
• ākṛti – form, shape, appearance, figure
  noun (feminine)
  Prefix: ā
  Root: kṛ (class 8)

केवलम् (kevalam) - only, merely, purely, alone

(adjective)

Nominative, neuter, singular of kevala

kevala - alone, solitary, mere, pure, exclusive

Note: Used adverbially here

चित्तमात्रात्मा (cittamātrātmā) - whose intrinsic nature (ātman) is pure mind (citta-mātra) (whose nature is merely mind)

(noun)

Nominative, masculine, singular of cittamātrātman

cittamātrātman - whose self/nature is merely mind

Compound type : bahuvrīhi (citta+mātra+ātman)

• citta – mind, thought, intellect
  noun (neuter)
  from cit
  Root: cit (class 1)
• mātra – only, mere, just
  adjective (neuter)
  suffix 'only, mere'
• ātman – self, soul, spirit, nature, essence
  noun (masculine)

कारणम् (kāraṇam) - cause, reason, instrument

(noun)

Nominative, neuter, singular of kāraṇa

kāraṇa - cause, reason, motive, instrument

Gerundive

from kṛ

Root: kṛ (class 8)

त्रिजगत्स्थितेः (trijagatsthiteḥ) - of the sustenance of the three worlds (of the existence of the three worlds)

(noun)

Genitive, feminine, singular of trijagatsthiti

trijagatsthiti - the existence/steadiness of the three worlds

Compound type : tatpuruṣa (tri+jagat+sthiti)

• tri – three
  adjective (neuter)
• jagat – world, universe, moving
  noun (neuter)
  Present Active Participle
  from gam
  Root: gam (class 1)
• sthiti – standing, state, existence, continuance, permanence
  noun (feminine)
  from sthā
  Root: sthā (class 1)