योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-100, verse-35

स्थैर्यास्थैर्येण भूतानां किमपूर्वमतौ भवेत् ।
भूतस्थैर्ये तथास्थैर्ये सुखं चैवासुखं समम् ॥ ३५ ॥

sthairyāsthairyeṇa bhūtānāṃ kimapūrvamatau bhavet ,
bhūtasthairye tathāsthairye sukhaṃ caivāsukhaṃ samam 35

35. sthairya-asthairyena bhūtānām kim apūrvam amatau bhavet
bhūta-sthairye tathā asthairye sukham ca eva asukham samam

35. bhūtānām sthairya-asthairyena kim apūrvam amatau bhavet? bhūta-sthairye tathā asthairye sukham ca eva asukham samam (bhavati).

35. What newness can there be beyond mere mental perception regarding the stability and instability of beings? For, in the stability and instability of beings, happiness and unhappiness are truly equal.

Words meanings summery:

• स्थैर्य-अस्थैर्येन (sthairya-asthairyena) - by stability and instability

• भूतानाम् (bhūtānām) - of beings; of elements

• किम् (kim) - what

• अपूर्वम् (apūrvam) - unprecedented; new; unique

• अमतौ (amatau) - not in the mind/intellect; beyond mental perception

• भवेत् (bhavet) - may it be; it should be; it might exist

• भूत-स्थैर्ये (bhūta-sthairye) - in the stability of beings; in the stability of elements

• तथा (tathā) - so; thus; and; in the same way

• अस्थैर्ये (asthairye) - in instability; in unsteadiness

• सुखम् (sukham) - happiness; joy

• च (ca) - and; also

• एव (eva) - indeed; only; just

• असुखम् (asukham) - unhappiness; sorrow; pain

• समम् (samam) - equal; same; alike

Words meanings and morphology

स्थैर्य-अस्थैर्येन (sthairya-asthairyena) - by stability and instability

(noun)

Instrumental, neuter, singular of sthairya-asthairya

sthairya-asthairya - stability and instability

Compound type : dvandva (sthairya+asthairya)

• sthairya – stability, firmness, steadfastness
  noun (neuter)
• asthairya – instability, unsteadiness, fickleness
  noun (neuter)

भूतानाम् (bhūtānām) - of beings; of elements

(noun)

Genitive, neuter, plural of bhūta

bhūta - being, creature, element, existing, past

Past Passive Participle

formed from root √bhū

Root: bhū (class 1)

किम् (kim) - what

(pronoun)

Nominative, neuter, singular of ka

ka - who, what, which (interrogative pronoun)

अपूर्वम् (apūrvam) - unprecedented; new; unique

(adjective)

Nominative, neuter, singular of apūrva

apūrva - unprecedented, new, unique, never before seen

Compound type : nañ-tatpuruṣa (a+pūrva)

• a – not, non-, un-
  indeclinable
• pūrva – former, prior, old, preceding
  adjective (neuter)

अमतौ (amatau) - not in the mind/intellect; beyond mental perception

(noun)

Locative, feminine, singular of amati

amati - lack of understanding, error, ignorance, bad intellect

Compound type : nañ-tatpuruṣa (a+mati)

• a – not, non-, un-
  indeclinable
• mati – mind, intellect, thought, opinion
  noun (feminine)
  Root: man (class 4)

भवेत् (bhavet) - may it be; it should be; it might exist

(verb)

3rd person , singular, active, optative (vidhiliṅ) of bhū

Root: bhū (class 1)

भूत-स्थैर्ये (bhūta-sthairye) - in the stability of beings; in the stability of elements

(noun)

Locative, neuter, singular of bhūtastahairya

bhūtastahairya - stability of beings/elements

Compound type : ṣaṣṭhī-tatpuruṣa (bhūta+sthairya)

• bhūta – being, creature, element
  noun (neuter)
  Root: bhū (class 1)
• sthairya – stability, firmness, steadfastness
  noun (neuter)

तथा (tathā) - so; thus; and; in the same way

(indeclinable)

अस्थैर्ये (asthairye) - in instability; in unsteadiness

(noun)

Locative, neuter, singular of asthairya

asthairya - instability, unsteadiness, fickleness

Compound type : nañ-tatpuruṣa (a+sthairya)

• a – not, non-, un-
  indeclinable
• sthairya – stability, firmness, steadfastness
  noun (neuter)

सुखम् (sukham) - happiness; joy

(noun)

Nominative, neuter, singular of sukha

sukha - happiness, joy, comfort, ease

च (ca) - and; also

(indeclinable)

एव (eva) - indeed; only; just

(indeclinable)

असुखम् (asukham) - unhappiness; sorrow; pain

(noun)

Nominative, neuter, singular of asukha

asukha - unhappiness, sorrow, pain, discomfort

Compound type : nañ-tatpuruṣa (a+sukha)

• a – not, non-, un-
  indeclinable
• sukha – happiness, joy, comfort
  noun (neuter)

समम् (samam) - equal; same; alike

(adjective)

Nominative, neuter, singular of sama

sama - equal, same, alike, impartial, even