योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-26, verse-29

अहंत्वोल्लेखतः सत्ता भ्रमभावविकारिणी ।
तदभावात्स्वभावैकनिष्ठता शमशालिनी ॥ २९ ॥

ahaṃtvollekhataḥ sattā bhramabhāvavikāriṇī ,
tadabhāvātsvabhāvaikaniṣṭhatā śamaśālinī 29

29. ahaṃ-tva-ullekhataḥ sattā bhrama-bhāva-vikāriṇī |
tat-abhāvāt sva-bhāva-eka-niṣṭhatā śama-śālinī ||

29. ahaṃ-tva-ullekhataḥ sattā bhrama-bhāva-vikāriṇī (bhavati).
tat-abhāvāt (tu) śama-śālinī sva-bhāva-eka-niṣṭhatā (bhavati)

29. From the manifestation of 'I-ness' (ahaṃtva), existence becomes subject to the modification of illusory states. When that (ahaṃtva) is absent, there is a singular steadfastness in one's own intrinsic nature (svabhāva), which is characterized by tranquility.

Words meanings summery:

• अहं-त्व-उल्लेखतः (ahaṁ-tva-ullekhataḥ) - from the perception/mention of 'I-ness'

• सत्ता (sattā) - existence, being, reality

• भ्रम-भाव-विकारिणी (bhrama-bhāva-vikāriṇī) - undergoing or causing modifications of illusory states

• तत्-अभावात् (tat-abhāvāt) - from its non-existence, from the absence of that

• स्व-भाव-एक-निष्ठता (sva-bhāva-eka-niṣṭhatā) - singular devotion to one's intrinsic nature, steadfastness in one's unique essence

• शम-शालिनी (śama-śālinī) - endowed with tranquility, possessed of calmness

Words meanings and morphology

अहं-त्व-उल्लेखतः (ahaṁ-tva-ullekhataḥ) - from the perception/mention of 'I-ness'

(noun)

Ablative, masculine, singular of ahaṃtvollekha

ahaṁtvollekha - manifestation of ego/I-ness

Compound type : tatpuruṣa (aham+tva+ullekha)

• aham – I, ego
  pronoun
• tva – suffix forming abstract noun, -ness
  suffix (neuter)
• ullekha – mentioning, appearance, manifestation
  noun (masculine)
  Prefix: ut
  Root: likh (class 6)

सत्ता (sattā) - existence, being, reality

(noun)

Nominative, feminine, singular of sattā

sattā - existence, being

भ्रम-भाव-विकारिणी (bhrama-bhāva-vikāriṇī) - undergoing or causing modifications of illusory states

(adjective)

Nominative, feminine, singular of bhramabhāvavikāriṇī

bhramabhāvavikāriṇī - changing into illusory states, prone to illusory modifications

Compound type : tatpuruṣa (bhrama+bhāva+vikāriṇī)

• bhrama – error, illusion, delusion
  noun (masculine)
• bhāva – state, condition, nature, existence
  noun (masculine)
• vikāriṇī – undergoing change, subject to modification, causing change
  adjective (feminine)
  agent noun/adjective
  From vikāra (change) + -inī (feminine agent suffix).

तत्-अभावात् (tat-abhāvāt) - from its non-existence, from the absence of that

(noun)

Ablative, masculine, singular of tadabhāva

tadabhāva - its absence, non-existence of that

Compound type : tatpuruṣa (tad+abhāva)

• tad – that
  pronoun (neuter)
• abhāva – absence, non-existence
  noun (masculine)

स्व-भाव-एक-निष्ठता (sva-bhāva-eka-niṣṭhatā) - singular devotion to one's intrinsic nature, steadfastness in one's unique essence

(noun)

Nominative, feminine, singular of svabhāvaikaniṣṭhatā

svabhāvaikaniṣṭhatā - steadfastness in one's own nature

Compound type : tatpuruṣa (sva+bhāva+eka+niṣṭhatā)

• sva – own, self
  pronoun/adjective
• bhāva – nature, intrinsic quality, state
  noun (masculine)
• eka – one, single, sole
  numeral/adjective
• niṣṭhatā – steadfastness, devotion, adherence
  noun (feminine)
  From niṣṭha (standing firm) + -tā (abstract suffix).

शम-शालिनी (śama-śālinī) - endowed with tranquility, possessed of calmness

(adjective)

Nominative, feminine, singular of śamaśālin

śamaśālin - endowed with tranquility

Compound type : tatpuruṣa (śama+śālin)

• śama – tranquility, calmness, quietude
  noun (masculine)
• śālin – possessing, adorned with, characterized by
  adjective (masculine)
  Suffix -śālin denoting possession or adornment.