योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-139, verse-16

स्वं प्राणमनसी साम्यात्कुर्वती कर्म तिष्ठतः ।
वैषम्याद्विषमं चैकं शान्ते शान्ता सुषुप्तता ॥ १६ ॥

svaṃ prāṇamanasī sāmyātkurvatī karma tiṣṭhataḥ ,
vaiṣamyādviṣamaṃ caikaṃ śānte śāntā suṣuptatā 16

16. svam prāṇa-manasī sāmyāt kurvatī karma tiṣṭhataḥ
vaiṣamyāt viṣamam ca ekam śānte śāntā suṣuptatā

16. svam prāṇa-manasī sāmyāt karma kurvatī tiṣṭhataḥ
ca vaiṣamyāt ekam viṣamam śānte śāntā suṣuptatā

16. When one's vital breath (prāṇa) and mind (manas) operate with equipoise (sāmya), they remain in their [natural] activity (karma). But from disequilibrium (vaiṣamya), one of them becomes unbalanced (viṣamam). In a tranquil state, there is tranquil deep sleep (suṣuptatā).

Words meanings summery:

• स्वम् (svam) - one's own (nature/essence) (one's own, its own)

• प्राण-मनसी (prāṇa-manasī) - vital breath and mind

• साम्यात् (sāmyāt) - with equipoise (from equality, due to equipoise, because of balance)

• कुर्वती (kurvatī) - operate (performing, doing, acting)

• कर्म (karma) - their [natural] activity (action, deed, activity (karma))

• तिष्ठतः (tiṣṭhataḥ) - they remain (they two remain, they two stand)

• वैषम्यात् (vaiṣamyāt) - from disequilibrium (from disequilibrium, due to unevenness)

• विषमम् (viṣamam) - unbalanced (unequal, uneven, unbalanced)

• च (ca) - but (and)

• एकम् (ekam) - one of them (one)

• शान्ते (śānte) - in a tranquil state (in tranquility, in a peaceful state)

• शान्ता (śāntā) - tranquil (tranquil, peaceful)

• सुषुप्तता (suṣuptatā) - deep sleep

Words meanings and morphology

स्वम् (svam) - one's own (nature/essence) (one's own, its own)

(pronoun)

Nominative, neuter, singular of sva

sva - one's own, pertaining to oneself

प्राण-मनसी (prāṇa-manasī) - vital breath and mind

(noun)

Nominative, masculine, dual of prāṇa-manas

prāṇa-manas - vital breath (prāṇa) and mind (manas)

Compound type : dvandva (prāṇa+manas)

• prāṇa – breath, vital air, life-force (prāṇa)
  noun (masculine)
  Prefix: pra
  Root: an (class 2)
• manas – mind (manas), intellect, heart
  noun (neuter)
  Root: man (class 4)

साम्यात् (sāmyāt) - with equipoise (from equality, due to equipoise, because of balance)

(noun)

Ablative, neuter, singular of sāmya

sāmya - equality, equipoise, impartiality, balance

derived from 'sama'

कुर्वती (kurvatī) - operate (performing, doing, acting)

(present active participle)

कर्म (karma) - their [natural] activity (action, deed, activity (karma))

(noun)

Accusative, neuter, singular of karman

karman - action, deed, work, duty (karma)

derived from 'kṛ'

Root: kṛ (class 8)

Note: Direct object of 'kurvatī'

तिष्ठतः (tiṣṭhataḥ) - they remain (they two remain, they two stand)

(verb)

3rd person , dual, active, present (laṭ) of sthā

Present Tense

3rd person dual, active voice, Present Tense

Root: sthā (class 1)

वैषम्यात् (vaiṣamyāt) - from disequilibrium (from disequilibrium, due to unevenness)

(noun)

Ablative, neuter, singular of vaiṣamya

vaiṣamya - disequilibrium, unevenness, inequality

derived from 'viṣama'

विषमम् (viṣamam) - unbalanced (unequal, uneven, unbalanced)

(adjective)

Nominative, neuter, singular of viṣama

viṣama - unequal, uneven, difficult, unbalanced

negation 'vi' + 'sama'

Compound type : tatpurusha (vi+sama)

• vi – apart, asunder, negative
  indeclinable
  negation prefix
• sama – equal, even, same
  adjective (masculine)

Note: Qualifies 'ekam' (implied 'one [of them]')

च (ca) - but (and)

(indeclinable)

एकम् (ekam) - one of them (one)

(numeral)

शान्ते (śānte) - in a tranquil state (in tranquility, in a peaceful state)

(adjective)

Locative, neuter, singular of śānta

śānta - tranquil, peaceful, calm, pacified

Past Passive Participle

from root 'śam'

Root: śam (class 1)

शान्ता (śāntā) - tranquil (tranquil, peaceful)

(adjective)

Nominative, feminine, singular of śānta

śānta - tranquil, peaceful, calm, pacified

Past Passive Participle

feminine nominative singular from root 'śam'

Root: śam (class 1)

Note: Qualifies 'suṣuptatā'

सुषुप्तता (suṣuptatā) - deep sleep

(noun)

Nominative, feminine, singular of suṣuptatā

suṣuptatā - deep sleep

derived from 'suṣupti' + 'tā' suffix

Root: svap (class 2)