योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-50, verse-20

पुर्यष्टकस्वभावेन कालेनाकारमृच्छति ।
यथावासनतः सेकाद्बीजं पल्लवतामिव ॥ २० ॥

puryaṣṭakasvabhāvena kālenākāramṛcchati ,
yathāvāsanataḥ sekādbījaṃ pallavatāmiva 20

20. puryaṣṭakasvabhāvena kālena ākāram ṛcchati
| yathāvāsanataḥ sekāt bījam pallavatām iva

20. puryaṣṭakasvabhāvena kālena yathāvāsanataḥ
ākāram ṛcchati iva sekāt bījam pallavatām

20. Due to the intrinsic nature (dharma) of the subtle body (puryaṣṭaka), the individual soul (jīva) assumes a specific form over time, in accordance with its latent impressions (vāsanā), just as a seed, through watering, develops into a sprout.

Words meanings summery:

• पुर्यष्टकस्वभावेन (puryaṣṭakasvabhāvena) - by the intrinsic nature of the subtle body

• कालेन (kālena) - by time, in due course of time

• आकारम् (ākāram) - form, shape, appearance

• ऋच्छति (ṛcchati) - attains, reaches, goes to

• यथावासनतः (yathāvāsanataḥ) - according to impressions (vāsanā)

• सेकात् (sekāt) - from watering, from sprinkling

• बीजम् (bījam) - seed

• पल्लवताम् (pallavatām) - the state of being a sprout, sprout-hood

• इव (iva) - like, as, just as

Words meanings and morphology

पुर्यष्टकस्वभावेन (puryaṣṭakasvabhāvena) - by the intrinsic nature of the subtle body

(noun)

Instrumental, masculine, singular of puryaṣṭakasvabhāva

puryaṣṭakasvabhāva - intrinsic nature (dharma) of the subtle body (puryaṣṭaka)

Compound type : tatpuruṣa (puryaṣṭaka+svabhāva)

• puryaṣṭaka – subtle body (puryaṣṭaka), group of eight elements
  noun (neuter)
• svabhāva – intrinsic nature (dharma), innate disposition, essence
  noun (masculine)

कालेन (kālena) - by time, in due course of time

(noun)

Instrumental, masculine, singular of kāla

kāla - time, period, season

आकारम् (ākāram) - form, shape, appearance

(noun)

Accusative, masculine, singular of ākāra

ākāra - form, shape, appearance, external aspect

ऋच्छति (ṛcchati) - attains, reaches, goes to

(verb)

3rd person , singular, active, present (lat) of ṛch

Root: ṛch (class 6)

यथावासनतः (yathāvāsanataḥ) - according to impressions (vāsanā)

(indeclinable)

Compound of yathā (as, according to) and vāsanā (impression) with suffix -tas

Compound type : tatpuruṣa (yathā+vāsanā)

• yathā – as, just as, according to
  indeclinable
• vāsanā – latent impression (vāsanā), mental trace
  noun (feminine)
  From root vas (to dwell, to perfume)
  Root: vas (class 1)

सेकात् (sekāt) - from watering, from sprinkling

(noun)

Ablative, masculine, singular of seka

seka - watering, sprinkling, irrigation, pouring

From root sic (to sprinkle)

Root: sic (class 6)

बीजम् (bījam) - seed

(noun)

Nominative, neuter, singular of bīja

bīja - seed, origin, cause, germ

पल्लवताम् (pallavatām) - the state of being a sprout, sprout-hood

(noun)

Accusative, feminine, singular of pallavatā

pallavatā - state of being a sprout or shoot

Derived from pallava (sprout) + -tā (suffix for abstract noun)

इव (iva) - like, as, just as

(indeclinable)