योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-39, verse-37

विस्मयस्मयसंमोहहर्षामर्षविकारिताम् ।
समतावलितस्तज्ज्ञो न कदाचन गच्छति ॥ ३७ ॥

vismayasmayasaṃmohaharṣāmarṣavikāritām ,
samatāvalitastajjño na kadācana gacchati 37

37. vismayasmayasaṃmohaharṣāmarṣavikāritām
samatā-avalitaḥ tajjñaḥ na kadācana gacchati

37. tajjñaḥ samatā-avalitaḥ
vismayasmayasaṃmohaharṣāmarṣavikāritām na kadācana gacchati

37. One who understands the truth (tajjñaḥ), established in equanimity (samatā), never succumbs to the state of being affected by wonder, pride, delusion, joy, or indignation.

Words meanings summery:

• विस्मयस्मयसंमोहहर्षामर्षविकारिताम् (vismayasmayasaṁmohaharṣāmarṣavikāritām) - the state of being affected by wonder, pride, delusion, joy, and indignation

• समता-अवलितः (samatā-avalitaḥ) - endowed with equanimity, connected to equanimity

• तज्ज्ञः (tajjñaḥ) - the knower of that, one who knows the truth

• न (na) - not, no

• कदाचन (kadācana) - ever, at any time, never (when with na)

• गच्छति (gacchati) - goes, attains, reaches

Words meanings and morphology

विस्मयस्मयसंमोहहर्षामर्षविकारिताम् (vismayasmayasaṁmohaharṣāmarṣavikāritām) - the state of being affected by wonder, pride, delusion, joy, and indignation

(noun)

Accusative, feminine, singular of vismayasmayasaṃmohaharṣāmarṣavikāritā

vismayasmayasaṁmohaharṣāmarṣavikāritā - affectedness by wonder, pride, delusion, joy, indignation

Compound type : tatpuruṣa (vismaya+smaya+saṃmoha+harṣa+amarṣa+vikāritā)

• vismaya – wonder, astonishment, surprise
  noun (masculine)
  Derived from vi- (upasarga) + smi (root 'to smile')
  Prefix: vi
  Root: smi (class 1)
• smaya – pride, arrogance, smile
  noun (masculine)
  Derived from smi (root 'to smile')
  Root: smi (class 1)
• saṃmoha – delusion, infatuation, confusion
  noun (masculine)
  Derived from sam- (upasarga) + muh (root 'to be bewildered')
  Prefix: sam
  Root: muh (class 4)
• harṣa – joy, delight, excitement
  noun (masculine)
  Derived from hṛṣ (root 'to be thrilled')
  Root: hṛṣ (class 4)
• amarṣa – indignation, impatience, intolerance
  noun (masculine)
  Derived from a- (negative prefix) + mṛṣ (root 'to bear, endure')
  Prefix: a
  Root: mṛṣ (class 1)
• vikāritā – state of being affected, changeableness, altered condition
  noun (feminine)
  Derived from vikāra (change) + tā (suffix for abstract noun)

Note: Object of gacchati.

समता-अवलितः (samatā-avalitaḥ) - endowed with equanimity, connected to equanimity

(adjective)

Nominative, masculine, singular of samatā-avalita

samatā-avalita - endowed with equanimity

Compound of samatā and avalita.

Compound type : tatpuruṣa (samatā+avalita)

• samatā – equanimity, sameness, equality, impartiality
  noun (feminine)
  Derived from sama (equal) + tā (suffix for abstract noun)
• avalita – connected, endowed, embraced, surrounded
  adjective (masculine)
  Past Passive Participle
  Derived from root val (to cover, move) with upasarga ava- or simply meaning 'connected to'
  Prefix: ava
  Root: val (class 1)

Note: Qualifies tajjñaḥ.

तज्ज्ञः (tajjñaḥ) - the knower of that, one who knows the truth

(noun)

Nominative, masculine, singular of tajjña

tajjña - knower of that, expert in that, wise one

Compound of tat (that) and jña (knower).

Compound type : tatpuruṣa (tat+jña)

• tat – that, it
  pronoun (neuter)
• jña – knower, understanding
  noun (masculine)
  Derived from jñā (root 'to know')
  Root: jñā (class 9)

Note: Subject of gacchati.

न (na) - not, no

(indeclinable)

कदाचन (kadācana) - ever, at any time, never (when with na)

(indeclinable)

From kadā (when) + cana (indefinite suffix).

Note: Used with na to express 'never'.

गच्छति (gacchati) - goes, attains, reaches

(verb)

3rd person , singular, active, present (laṭ) of gam

Present active indicative

3rd person singular, present tense, active voice.

Root: gam (class 1)