योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-60, verse-12

पयस्तया च पयसि वायौ वायुतया स्थितम् ।
तेजस्तया तेजसि च बुद्धौ बुद्धितया गतम् ॥ १२ ॥

payastayā ca payasi vāyau vāyutayā sthitam ,
tejastayā tejasi ca buddhau buddhitayā gatam 12

12. payastayā ca payasi vāyau vāyutayā sthitam
tejastayā tejasi ca buddhau buddhitayā gatam

12. payastayā ca payasi vāyau vāyutayā sthitam
tejastayā tejasi ca buddhau buddhitayā gatam

12. And it is present in water as the nature of water, and in air as the essence of air. It is manifested in fire as the quality of fire, and it is inherent in the intellect (buddhi) as the nature of intellect itself.

Words meanings summery:

• पयस्तया (payastayā) - as the nature of water (by the nature of water/milk, as water-ness)

• च (ca) - and (and, also)

• पयसि (payasi) - in water (in water, in milk, in fluid)

• वायौ (vāyau) - in air (in wind, in air)

• वायुतया (vāyutayā) - as the essence of air (by the nature of air, as air-ness)

• स्थितम् (sthitam) - present (standing, existing, situated, present, firm)

• तेजस्तया (tejastayā) - as the quality of fire (by the nature of light/fire/energy, as glory-ness)

• तेजसि (tejasi) - in fire (in fire, in light, in energy, in glory)

• च (ca) - and (and, also)

• बुद्धौ (buddhau) - in the intellect (buddhi) (in the intellect, in understanding)

• बुद्धितया (buddhitayā) - as the nature of intellect itself (by the nature of intellect, as intellect-ness)

• गतम् (gatam) - inherent (gone, reached, attained, inherent, understood)

Words meanings and morphology

पयस्तया (payastayā) - as the nature of water (by the nature of water/milk, as water-ness)

(noun)

Instrumental, feminine, singular of payastā

payastā - the state or quality of water/milk

From payas + suffix tā.

च (ca) - and (and, also)

(indeclinable)

पयसि (payasi) - in water (in water, in milk, in fluid)

(noun)

Locative, neuter, singular of payas

payas - water, milk, fluid, juice

वायौ (vāyau) - in air (in wind, in air)

(noun)

Locative, masculine, singular of vāyu

vāyu - wind, air, the god Vāyu

Root: vā (class 2)

वायुतया (vāyutayā) - as the essence of air (by the nature of air, as air-ness)

(noun)

Instrumental, feminine, singular of vāyutā

vāyutā - the state or quality of air/wind

From vāyu + suffix tā.

स्थितम् (sthitam) - present (standing, existing, situated, present, firm)

(adjective)

neuter, singular of sthita

sthita - standing, existing, situated, firm, steady

Past Passive Participle

Formed from root sthā (to stand, remain).

Root: sthā (class 1)

Note: Adverbial usage often implies "it is present".

तेजस्तया (tejastayā) - as the quality of fire (by the nature of light/fire/energy, as glory-ness)

(noun)

Instrumental, feminine, singular of tejastā

tejastā - the state or quality of light, energy, brilliance, fire

From tejas + suffix tā.

तेजसि (tejasi) - in fire (in fire, in light, in energy, in glory)

(noun)

Locative, neuter, singular of tejas

tejas - light, luster, brilliance, fire, energy, spiritual power

Root: tij (class 6)

च (ca) - and (and, also)

(indeclinable)

बुद्धौ (buddhau) - in the intellect (buddhi) (in the intellect, in understanding)

(noun)

Locative, feminine, singular of buddhi

buddhi - intellect, understanding, perception, reason (buddhi)

From root budh (to awaken, perceive).

Root: budh (class 1)

बुद्धितया (buddhitayā) - as the nature of intellect itself (by the nature of intellect, as intellect-ness)

(noun)

Instrumental, feminine, singular of buddhitā

buddhitā - the state or quality of intellect/understanding

From buddhi + suffix tā.

गतम् (gatam) - inherent (gone, reached, attained, inherent, understood)

(adjective)

neuter, singular of gata

gata - gone, arrived, obtained, known, inherent

Past Passive Participle

Formed from root gam (to go).

Root: gam (class 1)

Note: Adverbial usage often implies "it is inherent".