योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-29, verse-41

स्वसंकल्पविलासेन देहगेहे दुराकृतिः ।
उन्मत्तचित्तवेतालः परिवल्गति लीलया ॥ ४१ ॥

svasaṃkalpavilāsena dehagehe durākṛtiḥ ,
unmattacittavetālaḥ parivalgati līlayā 41

41. svasaṅkalpavilāsena dehagehe durākṛtiḥ
unmattacittavetālaḥ parivalgati līlayā

41. svasaṅkalpavilāsena dehagehe durākṛtiḥ
unmattacittavetālaḥ līlayā parivalgati

41. The ill-formed, mad mind-demon (vetāla) playfully roams within the body, which is its home, by means of its own volitional imaginings (sva-saṅkalpa-vilāsa).

Words meanings summery:

• स्वसङ्कल्पविलासेन (svasaṅkalpavilāsena) - by means of its own volitional imaginings (sva-saṅkalpa-vilāsa) (by the play of one's own volitions/intentions)

• देहगेहे (dehagehe) - in the house of the body

• दुराकृतिः (durākṛtiḥ) - ill-formed, badly shaped, ugly

• उन्मत्तचित्तवेतालः (unmattacittavetālaḥ) - mad mind-demon, a vetāla with a crazy mind

• परिवल्गति (parivalgati) - wanders around, jumps about, dances around

• लीलया (līlayā) - playfully, easily, for sport

Words meanings and morphology

स्वसङ्कल्पविलासेन (svasaṅkalpavilāsena) - by means of its own volitional imaginings (sva-saṅkalpa-vilāsa) (by the play of one's own volitions/intentions)

(noun)

Instrumental, masculine, singular of svasaṅkalpavilāsa

svasaṅkalpavilāsa - the play or sport of one's own will/volition/imagination

Compound type : tatpuruṣa (sva+saṅkalpa+vilāsa)

• sva – own, self
  pronoun (masculine)
• saṅkalpa – volition, intention, firm resolve, conceptualization
  noun (masculine)
  Prefix: sam
  Root: kḷp (class 1)
• vilāsa – play, sport, dalliance, graceful movement
  noun (masculine)
  Prefix: vi
  Root: las (class 1)

देहगेहे (dehagehe) - in the house of the body

(noun)

Locative, masculine, singular of dehageha

dehageha - body-house, the body as a dwelling

Compound type : karmadhāraya (deha+geha)

• deha – body
  noun (masculine)
• geha – house, dwelling, abode
  noun (neuter)

दुराकृतिः (durākṛtiḥ) - ill-formed, badly shaped, ugly

(adjective)

Nominative, masculine, singular of durākṛti

durākṛti - ill-formed, having a bad shape or appearance, ugly

Compound type : bahuvrīhi (dus+ākṛti)

• dus – bad, difficult, ill (prefix)
  indeclinable
• ākṛti – form, shape, appearance, figure
  noun (feminine)
  Prefix: ā
  Root: kṛ (class 8)

Note: Agrees with unmattacittavetālaḥ.

उन्मत्तचित्तवेतालः (unmattacittavetālaḥ) - mad mind-demon, a vetāla with a crazy mind

(noun)

Nominative, masculine, singular of unmattacittavetāla

unmattacittavetāla - a mad mind-demon, a vetāla with a crazed mind

Compound type : tatpuruṣa (unmatta+citta+vetāla)

• unmatta – mad, frenzied, intoxicated
  adjective (masculine)
  Past Passive Participle
  root mad (to be mad) with prefix ud + kta suffix
  Prefix: ud
  Root: mad (class 4)
• citta – mind, consciousness, thought
  noun (neuter)
• vetāla – a ghost, demon, vampire-like being
  noun (masculine)

Note: Subject of parivalgati.

परिवल्गति (parivalgati) - wanders around, jumps about, dances around

(verb)

3rd person , singular, active, present (laṭ) of parivalg

root valg with prefix pari

Prefix: pari

Root: valg (class 1)

लीलया (līlayā) - playfully, easily, for sport

(noun)

Instrumental, feminine, singular of līlā

līlā - play, sport, amusement, ease