योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-12, verse-22

भावयंस्तनुतामेव रसस्कन्ध इवाम्भसः ।
स्वदनं तस्य सङ्घस्य रसतन्मात्रमुच्यते ॥ २२ ॥

bhāvayaṃstanutāmeva rasaskandha ivāmbhasaḥ ,
svadanaṃ tasya saṅghasya rasatanmātramucyate 22

22. bhāvayan tanutām eva rasaskandhaḥ iva ambhasaḥ
svadanam tasya saṅghasya rasatanmātram ucyate

22. ambhasaḥ tanutām eva bhāvayan rasaskandhaḥ iva (asti),
tasya saṅghasya svadanam rasatanmātram ucyate.

22. Just as water, when its subtle nature is contemplated, becomes an essential mass of flavor, so too the savoring of that aggregate (of subtle perceptions) is called the subtle element (tanmātra) of taste.

Words meanings summery:

• भावयन् (bhāvayan) - causing to become, imagining, meditating upon, conceiving

• तनुताम् (tanutām) - subtlety, fineness, slenderness, tenuity

• एव (eva) - only, indeed, just, precisely

• रसस्कन्धः (rasaskandhaḥ) - a mass of essence, collection of taste, aggregate of flavor

• इव (iva) - like, as, as if

• अम्भसः (ambhasaḥ) - of water

• स्वदनम् (svadanam) - savoring, tasting, experiencing, delighting in

• तस्य (tasya) - of that, its

• सङ्घस्य (saṅghasya) - of the group, of the collection, of the aggregate

• रसतन्मात्रम् (rasatanmātram) - the subtle element of taste/flavor

• उच्यते (ucyate) - is called, is said, is designated

Words meanings and morphology

भावयन् (bhāvayan) - causing to become, imagining, meditating upon, conceiving

(participle)

Nominative, masculine, singular of bhāvayat

bhāvayat - causing to be, bringing into existence, meditating, conceiving, imagining

Present Active Participle

Derived from causative root bhū (to be) + śatṛ pratyaya.

Root: bhū (class 1)

तनुताम् (tanutām) - subtlety, fineness, slenderness, tenuity

(noun)

Accusative, feminine, singular of tanutā

tanutā - subtlety, fineness, slenderness, tenuity, attenuation

Derived from tanu (thin, subtle) + tā (abstract suffix).

एव (eva) - only, indeed, just, precisely

(indeclinable)

रसस्कन्धः (rasaskandhaḥ) - a mass of essence, collection of taste, aggregate of flavor

(noun)

Nominative, masculine, singular of rasaskandha

rasaskandha - mass of essence, aggregate of taste/flavor

Compound.

Compound type : tatpurusha (rasa+skandha)

• rasa – juice, sap, essence, taste, flavor, emotion
  noun (masculine)
• skandha – trunk, main stem, mass, aggregate, collection, section
  noun (masculine)

इव (iva) - like, as, as if

(indeclinable)

अम्भसः (ambhasaḥ) - of water

(noun)

Genitive, neuter, singular of ambhas

ambhas - water

स्वदनम् (svadanam) - savoring, tasting, experiencing, delighting in

(noun)

Nominative, neuter, singular of svadana

svadana - act of tasting, savoring, enjoying, delighting

Derived from root svad (to taste, to be sweet).

Root: svad (class 1)

तस्य (tasya) - of that, its

(pronoun)

Genitive, neuter, singular of tad

tad - that, this

Demonstrative pronoun.

सङ्घस्य (saṅghasya) - of the group, of the collection, of the aggregate

(noun)

Genitive, masculine, singular of saṅgha

saṅgha - collection, aggregation, group, community, multitude

From saṃ-han (to strike together, collect).

Prefix: sam

Root: han (class 2)

रसतन्मात्रम् (rasatanmātram) - the subtle element of taste/flavor

(noun)

Nominative, neuter, singular of rasatanmātra

rasatanmātra - subtle element of taste, pure essence of taste

Compound.

Compound type : tatpurusha (rasa+tanmātra)

• rasa – juice, sap, essence, taste, flavor, emotion
  noun (masculine)
• tanmātra – subtle element, mere quantity of that, pure essence
  noun (neuter)
  Compound of tad (that) and mātra (mere, measure).

उच्यते (ucyate) - is called, is said, is designated

(verb)

3rd person , singular, passive, present (laṭ) of vac

Passive voice.

Root: vac (class 2)