योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-44, verse-20

प्राकाश्यममलालोकमालोकस्तेन वर्धते ।
मनस्तावद्गुणगतं रसतन्मात्रवेदनम् ॥ २० ॥

prākāśyamamalālokamālokastena vardhate ,
manastāvadguṇagataṃ rasatanmātravedanam 20

20. prākāśyam amalālokam ālokaḥ tena vardhate |
manas tāvat guṇagatam rasatanmātravedanam ||

20. tena prākāśyam amalālokam ālokaḥ vardhate manas
tāvat guṇagatam rasatanmātravedanam (karoti)

20. By that (fire), luminosity (prākāśyam) and pure light (amala-āloka) increase (vardhate). The mind (manas), meanwhile, having become focused on qualities (guṇa-gatam), perceives the subtle element (tanmātra) of taste (rasa).

Words meanings summery:

• प्राकाश्यम् (prākāśyam) - luminosity, brilliance, clarity

• अमलालोकम् (amalālokam) - pure light, spotless brilliance

• आलोकः (ālokaḥ) - light, vision, appearance

• तेन (tena) - by that, by it

• वर्धते (vardhate) - increases, grows, thrives

• मनस् (manas) - mind

• तावत् (tāvat) - meanwhile, so much, to that extent

• गुणगतम् (guṇagatam) - having become focused on qualities (pertaining to qualities, having attained qualities, inherent in qualities)

• रसतन्मात्रवेदनम् (rasatanmātravedanam) - perception of the subtle element of taste

Words meanings and morphology

प्राकाश्यम् (prākāśyam) - luminosity, brilliance, clarity

(noun)

Accusative, neuter, singular of prākāśya

prākāśya - luminosity, publicity, clear visibility

Derived from 'pra-kāś' (to shine forth) with the suffix 'ṣya'.

Prefix: pra

Root: kāś (class 1)

अमलालोकम् (amalālokam) - pure light, spotless brilliance

(noun)

Accusative, masculine, singular of amala-āloka

amala-āloka - pure light

Compound type : karmadhāraya (amala+āloka)

• amala – spotless, pure, clean
  adjective (masculine)
  Negation 'a-' + 'mala' (dirt).
• āloka – light, vision, sight
  noun (masculine)
  Prefix: ā
  Root: lok (class 10)

आलोकः (ālokaḥ) - light, vision, appearance

(noun)

Nominative, masculine, singular of āloka

āloka - light, vision, sight

Prefix: ā

Root: lok (class 10)

तेन (tena) - by that, by it

(pronoun)

Instrumental, neuter, singular of tad

tad - that, that one, it

Note: Refers to 'fire' from the previous verse.

वर्धते (vardhate) - increases, grows, thrives

(verb)

3rd person , singular, middle, present indicative (laṭ) of vṛdh

Root: vṛdh (class 1)

मनस् (manas) - mind

(noun)

Nominative, neuter, singular of manas

manas - mind, intellect, thought, consciousness

Root: man (class 4)

तावत् (tāvat) - meanwhile, so much, to that extent

(indeclinable)

गुणगतम् (guṇagatam) - having become focused on qualities (pertaining to qualities, having attained qualities, inherent in qualities)

(adjective)

Accusative, neuter, singular of guṇa-gata

guṇa-gata - gone into qualities, pertaining to qualities

Compound type : tatpuruṣa (guṇa+gata)

• guṇa – quality, attribute, constituent of nature
  noun (masculine)
• gata – gone, arrived at, pertaining to, situated in
  adjective (masculine)
  Past Passive Participle
  Root 'gam' (to go) + suffix 'kta' (ta).
  Root: gam (class 1)

Note: Agrees with 'rasatanmātravedanam' or could be an adjective of an implied object.

रसतन्मात्रवेदनम् (rasatanmātravedanam) - perception of the subtle element of taste

(noun)

Accusative, neuter, singular of rasa-tanmātra-vedana

rasa-tanmātra-vedana - perception of the subtle element of taste

Compound type : tatpuruṣa (rasa+tanmātra+vedana)

• rasa – taste, essence, fluid
  noun (masculine)
  Root: ras (class 1)
• tanmātra – subtle element, primary element, sense object
  noun (neuter)
• vedana – perception, knowing, feeling
  noun (neuter)
  Derived from root 'vid' (to know) with suffix 'lyuṭ'.
  Root: vid (class 2)