योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-67, verse-35

भावाभावादिकलनां नीत्वा चिन्मयतां चितः ।
समोल्लासविलासान्तः समाश्वस यथासुखम् ॥ ३५ ॥

bhāvābhāvādikalanāṃ nītvā cinmayatāṃ citaḥ ,
samollāsavilāsāntaḥ samāśvasa yathāsukham 35

35. bhāva-abhāva-ādi-kalanām nītvā cin-mayatām citaḥ
sam-ullāsa-vilāsa-antaḥ sam-āśvasa yathā-sukham

35. bhāva-abhāva-ādi-kalanām citaḥ cin-mayatām nītvā
yathā-sukham sam-ullāsa-vilāsa-antaḥ sam-āśvasa

35. Having transformed the notions (kalanā) of existence, non-existence, and the like, into the very nature of consciousness (cit), find solace within the blissful play of complete joy, as you wish.

Words meanings summery:

• भाव-अभाव-आदि-कलनाम् (bhāva-abhāva-ādi-kalanām) - the conceptualization/notion of existence, non-existence, etc.

• नीत्वा (nītvā) - having led, having brought, having transformed

• चिन्-मयताम् (cin-mayatām) - to the state of being consciousness-filled, to the nature of consciousness

• चितः (citaḥ) - of consciousness

• सम्-उल्लास-विलास-अन्तः (sam-ullāsa-vilāsa-antaḥ) - within the joyous sport/play of complete exhilaration

• सम्-आश्वस (sam-āśvasa) - take comfort, rest, breathe easily

• यथा-सुखम् (yathā-sukham) - comfortably, as one pleases, according to ease

Words meanings and morphology

भाव-अभाव-आदि-कलनाम् (bhāva-abhāva-ādi-kalanām) - the conceptualization/notion of existence, non-existence, etc.

(noun)

Accusative, feminine, singular of bhāva-abhāva-ādi-kalanā

bhāva-abhāva-ādi-kalanā - conceptualization of existence, non-existence, etc.

Compound type : tatpuruṣa (bhāva+abhāva+ādi+kalanā)

• bhāva – existence, being, state
  noun (masculine)
  Root: bhū (class 1)
• abhāva – non-existence, absence, non-being
  noun (masculine)
• ādi – beginning, etcetera, and so on
  indeclinable (masculine)
• kalanā – conceptualization, notion, reckoning, perception
  noun (feminine)
  Root: kal (class 1)

नीत्वा (nītvā) - having led, having brought, having transformed

(indeclinable)

absolutive

Root: nī (class 1)

चिन्-मयताम् (cin-mayatām) - to the state of being consciousness-filled, to the nature of consciousness

(noun)

Accusative, feminine, singular of cin-mayatā

cin-mayatā - state of being consciousness-filled, nature of consciousness

Compound type : tatpuruṣa (cit+mayatā)

• cit – consciousness, pure intelligence
  noun (feminine)
• mayatā – state of being full of, nature of, made of
  suffix forming noun (feminine)
  From 'maya' (made of) + 'tā' (abstract noun suffix)

चितः (citaḥ) - of consciousness

(noun)

Genitive, feminine, singular of cit

cit - consciousness, pure intelligence

सम्-उल्लास-विलास-अन्तः (sam-ullāsa-vilāsa-antaḥ) - within the joyous sport/play of complete exhilaration

(indeclinable)

Compound type : avyayībhāva (samullāsa-vilāsa+antas)

• samullāsa-vilāsa – full joy and play
  noun (masculine)
• antas – within, inside
  indeclinable

सम्-आश्वस (sam-āśvasa) - take comfort, rest, breathe easily

(verb)

2nd person , singular, active, imperative (loṭ) of āśvas

Prefix: ā

Root: śvas (class 2)

यथा-सुखम् (yathā-sukham) - comfortably, as one pleases, according to ease

(indeclinable)

Compound type : avyayībhāva (yathā+sukha)

• yathā – as, according to
  indeclinable
• sukha – pleasure, comfort, happiness
  noun (neuter)