योगवासिष्ठः yogavāsiṣṭhaḥ - book-2, chapter-6, verse-37

नित्यं स्वपौरुषादेव लोकद्वयहितं भवेत् ।
ह्यस्तनी दुष्क्रियाभ्येति शोभां सत्क्रियया यथा ॥ ३७ ॥

nityaṃ svapauruṣādeva lokadvayahitaṃ bhavet ,
hyastanī duṣkriyābhyeti śobhāṃ satkriyayā yathā 37

37. nityam sva-pauruṣāt eva loka-dvaya-hitam bhavet |
hyastanī duṣkriyā abhyeti śobhām sat-kriyayā yathā

37. nityam sva-pauruṣāt eva loka-dvaya-hitam bhavet.
yathā hyastanī duṣkriyā sat-kriyayā śobhām abhyeti.

37. Always, through self-effort (pauruṣa) alone, the welfare of both worlds (this and the next) is achieved. Just as a bad deed of yesterday attains luster through a good deed.

Words meanings summery:

• नित्यम् (nityam) - Always. (Always, constantly, eternal.)

• स्व-पौरुषात् (sva-pauruṣāt) - Through one's own self-effort (pauruṣa). (From one's own manhood, from one's own self-effort.)

• एव (eva) - Alone, only. (Alone, only, indeed, certainly.)

• लोक-द्वय-हितम् (loka-dvaya-hitam) - The welfare of both worlds (this world and the next). (The welfare of the two worlds.)

• भवेत् (bhavet) - Is achieved, comes to be. (May be, should be, would be, becomes.)

• ह्यस्तनी (hyastanī) - Of yesterday, yesterday's. (Pertaining to yesterday, past.)

• दुष्क्रिया (duṣkriyā) - A bad deed. (A bad action, evil deed, misconduct.)

• अभ्येति (abhyeti) - Attains. (Approaches, goes towards, obtains, attains.)

• शोभाम् (śobhām) - Luster, attractiveness. (Beauty, luster, splendor, grace.)

• सत्-क्रियया (sat-kriyayā) - Through a good deed. (By a good action, by an honorable deed.)

• यथा (yathā) - Just as. (Just as, as, in which way.)

Words meanings and morphology

नित्यम् (nityam) - Always. (Always, constantly, eternal.)

(indeclinable)

स्व-पौरुषात् (sva-pauruṣāt) - Through one's own self-effort (pauruṣa). (From one's own manhood, from one's own self-effort.)

(noun)

Ablative, neuter, singular of sva-pauruṣa

sva-pauruṣa - one's own self-effort, one's own manhood, one's own strength

Compound type : tatpuruṣa (sva+pauruṣa)

• sva – one's own, self
  pronoun (neuter)
• pauruṣa – manhood, human effort, self-effort, strength
  noun (neuter)
  Derived from puruṣa

Note: Denotes cause or means.

एव (eva) - Alone, only. (Alone, only, indeed, certainly.)

(indeclinable)

Note: Emphatic particle.

लोक-द्वय-हितम् (loka-dvaya-hitam) - The welfare of both worlds (this world and the next). (The welfare of the two worlds.)

(noun)

Nominative, neuter, singular of loka-dvaya-hita

loka-dvaya-hita - welfare of the two worlds

Compound type : tatpuruṣa (loka+dvaya+hita)

• loka – world, realm, people
  noun (masculine)
• dvaya – pair, duality, two
  noun (neuter)
• hita – beneficial, good, welfare
  adjective (neuter)
  Past Passive Participle
  From root dhā- with prefix hi- (used as a noun here)
  Root: dhā (class 3)

Note: Subject of 'bhavet'.

भवेत् (bhavet) - Is achieved, comes to be. (May be, should be, would be, becomes.)

(verb)

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

Root: bhū (class 1)

Note: Expresses potential or desirability.

ह्यस्तनी (hyastanī) - Of yesterday, yesterday's. (Pertaining to yesterday, past.)

(adjective)

Nominative, feminine, singular of hyastana

hyastana - of yesterday, relating to yesterday

Derived from hyas (yesterday) + tana (suffix)

Note: Qualifies 'duṣkriyā'.

दुष्क्रिया (duṣkriyā) - A bad deed. (A bad action, evil deed, misconduct.)

(noun)

Nominative, feminine, singular of duṣkriyā

duṣkriyā - bad action, evil deed, misconduct

Compound type : tatpuruṣa (dus+kriyā)

• dus – bad, evil, difficult (prefix)
  indeclinable
• kriyā – action, deed, activity
  noun (feminine)
  From root kṛ-
  Root: kṛ (class 8)

Note: Subject of 'abhyeti'.

अभ्येति (abhyeti) - Attains. (Approaches, goes towards, obtains, attains.)

(verb)

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

Prefix: abhi

Root: i (class 2)

Note: The root 'i' means 'to go'.

शोभाम् (śobhām) - Luster, attractiveness. (Beauty, luster, splendor, grace.)

(noun)

Accusative, feminine, singular of śobhā

śobhā - beauty, splendor, luster, grace, adornment

Root: śubh (class 1)

Note: Object of 'abhyeti'.

सत्-क्रियया (sat-kriyayā) - Through a good deed. (By a good action, by an honorable deed.)

(noun)

Instrumental, feminine, singular of sat-kriyā

sat-kriyā - good action, good deed, proper ceremony

Compound type : tatpuruṣa (sat+kriyā)

• sat – good, true, existing, excellent
  adjective (masculine)
  Present Active Participle
  From root as-
  Root: as (class 2)
• kriyā – action, deed, activity
  noun (feminine)
  From root kṛ-
  Root: kṛ (class 8)

Note: Denotes means.

यथा (yathā) - Just as. (Just as, as, in which way.)

(indeclinable)

Note: Introduces a comparison.