योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-17, verse-21

चिरमेकदृढाभ्यासाच्छुद्धिर्भवति चेतसः ।
अनाक्रान्तस्य संकल्पैः प्रतिभोदेति चेतसः ॥ २१ ॥

ciramekadṛḍhābhyāsācchuddhirbhavati cetasaḥ ,
anākrāntasya saṃkalpaiḥ pratibhodeti cetasaḥ 21

21. ciram eka-dṛḍha-abhyāsāt śuddhiḥ bhavati cetasaḥ
anākrāntasya saṃkalpaiḥ pratibhā ud eti cetasaḥ

21. ciram eka-dṛḍha-abhyāsāt cetasaḥ śuddhiḥ bhavati.
saṃkalpaiḥ anākrāntasya cetasaḥ pratibhā ud eti.

21. For a long time, from consistent, firm practice (abhyāsa), purity arises for the mind (cetas). For the mind that is unassailed by volitions (saṃkalpa), direct insight (pratibhā) appears.

Words meanings summery:

• चिरम् (ciram) - for a long time, long

• एक-दृढ-अभ्यासात् (eka-dṛḍha-abhyāsāt) - from consistent, firm practice

• शुद्धिः (śuddhiḥ) - purity, purification

• भवति (bhavati) - becomes, is

• चेतसः (cetasaḥ) - of the mind, of consciousness

• अनाक्रान्तस्य (anākrāntasya) - of the mind (cetas) that is unassailed (of the unassailed, of the undisturbed)

• संकल्पैः (saṁkalpaiḥ) - by volitions, by intentions, by mental formations

• प्रतिभा (pratibhā) - direct insight, intuition, flash of intelligence, manifestation

• उद् (ud) - up, forth

• एति (eti) - rises, appears (when combined with 'ud') (goes, comes)

• चेतसः (cetasaḥ) - of the mind, of consciousness

Words meanings and morphology

चिरम् (ciram) - for a long time, long

(indeclinable)

Note: Used adverbially.

एक-दृढ-अभ्यासात् (eka-dṛḍha-abhyāsāt) - from consistent, firm practice

(noun)

Ablative, masculine, singular of eka-dṛḍha-abhyāsa

eka-dṛḍha-abhyāsa - consistent, firm practice

Compound type : tatpurusha (eka-dṛḍha+abhyāsa)

• eka – one, single, consistent
  numeral/adjective (masculine)
• dṛḍha – firm, strong, steady
  adjective (masculine)
  Past Passive Participle
  Root: dṛh (class 4)
• abhyāsa – practice, repetition, study
  noun (masculine)
  Prefix: abhi
  Root: as (class 4)

शुद्धिः (śuddhiḥ) - purity, purification

(noun)

Nominative, feminine, singular of śuddhi

śuddhi - purity, purification, cleanness

Root: śudh (class 4)

भवति (bhavati) - becomes, is

(verb)

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

Root: bhū (class 1)

चेतसः (cetasaḥ) - of the mind, of consciousness

(noun)

Genitive, neuter, singular of cetas

cetas - mind, consciousness, intellect

अनाक्रान्तस्य (anākrāntasya) - of the mind (cetas) that is unassailed (of the unassailed, of the undisturbed)

(adjective)

Genitive, masculine/neuter, singular of anākrānta

anākrānta - unassailed, undisturbed, not overcome

Past Passive Participle

Negative prefix 'an-' + participle 'ākrānta' (from ā-kram)

Prefix: ā

Root: kram (class 1)

संकल्पैः (saṁkalpaiḥ) - by volitions, by intentions, by mental formations

(noun)

Instrumental, masculine, plural of saṃkalpa

saṁkalpa - volition, intention, resolve, mental formation

Prefix: sam

Root: kḷp (class 1)

प्रतिभा (pratibhā) - direct insight, intuition, flash of intelligence, manifestation

(noun)

Nominative, feminine, singular of pratibhā

pratibhā - flash of insight, intuition, mental image, manifestation

Prefix: prati

Root: bhā (class 2)

उद् (ud) - up, forth

(indeclinable)

एति (eti) - rises, appears (when combined with 'ud') (goes, comes)

(verb)

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

Root: i (class 2)

चेतसः (cetasaḥ) - of the mind, of consciousness

(noun)

Genitive, neuter, singular of cetas

cetas - mind, consciousness, intellect