योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-23, verse-18

दुर्विलासविलासिन्या चेष्टया कष्टषुष्टया ।
द्रव्यैकरूपकृद्रूपं जनमावर्तयन्स्थितः ॥ १८ ॥

durvilāsavilāsinyā ceṣṭayā kaṣṭaṣuṣṭayā ,
dravyaikarūpakṛdrūpaṃ janamāvartayansthitaḥ 18

18. durvilāsavilāsinyā ceṣṭayā kaṣṭapuṣṭayā
dravyaikarūpakṛdrūpam janam āvartayan sthitaḥ

18. durvilāsavilāsinyā kaṣṭapuṣṭayā ceṣṭayā
dravyaikarūpakṛdrūpam janam āvartayan sthitaḥ

18. With its activity, which revels in deceitful sport and thrives on trouble, it (the mind) persists, causing people to whirl around, making them perceive diverse objects as a singular, substantial reality.

Words meanings summery:

• दुर्विलासविलासिन्या (durvilāsavilāsinyā) - by its activity which revels in deceitful sport (by a coquette of mischievous play, by the activity of mischievous sport)

• चेष्टया (ceṣṭayā) - by its activity (by activity, by action, by effort)

• कष्टपुष्टया (kaṣṭapuṣṭayā) - by an activity thriving on trouble/suffering (by one nourished by suffering, by an activity thriving on trouble)

• द्रव्यैकरूपकृद्रूपम् (dravyaikarūpakṛdrūpam) - making people perceive diverse objects as a singular, substantial reality (whose form creates a single form of substance, making objects appear as a single reality)

• जनम् (janam) - people (people, person, humanity)

• आवर्तयन् (āvartayan) - causing to whirl around, deluding (causing to turn, causing to revolve, confusing, deluding)

• स्थितः (sthitaḥ) - persists, remains existing (standing, situated, existing, remaining)

Words meanings and morphology

दुर्विलासविलासिन्या (durvilāsavilāsinyā) - by its activity which revels in deceitful sport (by a coquette of mischievous play, by the activity of mischievous sport)

(adjective)

Instrumental, feminine, singular of durvilāsavilāsinī

durvilāsavilāsinī - a coquette or playful woman delighting in mischievous sport

Compound type : tatpuruṣa or descriptive compound (durvilāsa+vilāsinī)

• durvilāsa – mischievous sport, evil play, wickedness
  noun (masculine)
  Compound of 'dur' (bad, difficult) and 'vilāsa' (sport, play).
  Prefix: dur
• vilāsinī – sportive woman, coquette, graceful, charming
  noun/adjective (feminine)
  Feminine of `vilāsin` (sportive, playful).

Note: Qualifies `ceṣṭayā`.

चेष्टया (ceṣṭayā) - by its activity (by activity, by action, by effort)

(noun)

Instrumental, feminine, singular of ceṣṭā

ceṣṭā - activity, movement, effort, endeavor

Root: ceṣṭ (class 1)

Note: Indicates the means by which the mind acts.

कष्टपुष्टया (kaṣṭapuṣṭayā) - by an activity thriving on trouble/suffering (by one nourished by suffering, by an activity thriving on trouble)

(adjective)

Instrumental, feminine, singular of kaṣṭapuṣṭā

kaṣṭapuṣṭā - nourished by suffering/difficulty

Compound of 'kaṣṭa' (suffering) and 'puṣṭa' (nourished, thriving).

Compound type : tatpuruṣa (kaṣṭa+puṣṭa)

• kaṣṭa – suffering, difficulty, pain
  noun (neuter)
• puṣṭa – nourished, thriving, strong, grown
  adjective (masculine)
  Past Passive Participle
  From root 'puṣ' (to nourish, thrive).
  Root: puṣ (class 4)

Note: Qualifies `ceṣṭayā`.

द्रव्यैकरूपकृद्रूपम् (dravyaikarūpakṛdrūpam) - making people perceive diverse objects as a singular, substantial reality (whose form creates a single form of substance, making objects appear as a single reality)

(adjective)

Accusative, masculine, singular of dravyaikarūpakṛdrūpa

dravyaikarūpakṛdrūpa - whose form makes a single form of substance/reality; making objects appear as a single reality

A complex compound describing the nature or effect of illusion.

Compound type : bahuvrīhi (dravya+eka+rūpa+kṛt+rūpa)

• dravya – substance, object, thing
  noun (neuter)
• eka – one, single, unique
  numeral/adjective (masculine)
• rūpa – form, appearance, nature, color
  noun (neuter)
• kṛt – maker, creator, doing, causing
  noun/adjective (masculine)
  Agent noun/Participle
  From root 'kṛ' (to do, make).
  Root: kṛ (class 8)
• rūpa – form, appearance, nature, color
  noun (neuter)

Note: Qualifies `janam`.

जनम् (janam) - people (people, person, humanity)

(noun)

Accusative, masculine, singular of jana

jana - people, person, mankind

Note: Object of `āvartayan`.

आवर्तयन् (āvartayan) - causing to whirl around, deluding (causing to turn, causing to revolve, confusing, deluding)

(participle)

Nominative, masculine, singular of āvartayat

āvartayat - causing to turn, causing to revolve, confusing, deluding

Present Active Participle (Causative)

From causative of root 'vṛt' (to turn) with prefix 'ā'. Masculine nominative singular.

Prefix: ā

Root: vṛt (class 1)

Note: Functions as the subject of the sentence in conjunction with `sthitaḥ`.

स्थितः (sthitaḥ) - persists, remains existing (standing, situated, existing, remaining)

(adjective)

Nominative, masculine, singular of sthita

sthita - standing, situated, existing, remaining

Past Passive Participle

From root 'sthā' (to stand). Masculine nominative singular.

Root: sthā (class 1)

Note: Subject is the implied 'mind'.