योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-18, verse-4

तन्मात्रैक्यप्रणालेन चित्राः सर्गजलाशयाः ।
परस्परं संमिलन्ति घनतां यान्ति चाभितः ॥ ४ ॥

tanmātraikyapraṇālena citrāḥ sargajalāśayāḥ ,
parasparaṃ saṃmilanti ghanatāṃ yānti cābhitaḥ 4

4. tanmātraikya-praṇālena citrāḥ sarga-jalāśayāḥ
parasparam saṃmilanti ghanatām yānti ca abhitaḥ

4. citrāḥ sarga-jalāśayāḥ tanmātraikya-praṇālena
parasparam saṃmilanti ca abhitaḥ ghanatām yānti

4. Through the channel of the unity of the subtle elements (tanmātras), the variegated creations, like reservoirs, merge with each other and attain density all around.

Words meanings summery:

• तन्मात्रैक्य-प्रणालेन (tanmātraikya-praṇālena) - by the channel of the unity of subtle elements

• चित्राः (citrāḥ) - diverse, variegated, wonderful

• सर्ग-जलाशयाः (sarga-jalāśayāḥ) - reservoirs of creation; creations like reservoirs

• परस्परम् (parasparam) - mutually, reciprocally, with each other

• संमिलन्ति (saṁmilanti) - they merge, they unite, they come together

• घनताम् (ghanatām) - density, solidity, compactness

• यान्ति (yānti) - they go, they move, they attain, they reach

• च (ca) - and, also

• अभितः (abhitaḥ) - on all sides, all around, near

Words meanings and morphology

तन्मात्रैक्य-प्रणालेन (tanmātraikya-praṇālena) - by the channel of the unity of subtle elements

(noun)

Instrumental, neuter, singular of tanmātraikya-praṇāla

tanmātraikya-praṇāla - channel of the unity of subtle elements

Compound type : tatpuruṣa (tanmātra+aikya+praṇāla)

• tanmātra – subtle element (e.g., sound, touch, form, taste, smell)
  noun (neuter)
• aikya – unity, oneness
  noun (neuter)
• praṇāla – channel, conduit, spout
  noun (masculine)

चित्राः (citrāḥ) - diverse, variegated, wonderful

(adjective)

Nominative, feminine, plural of citra

citra - variegated, diverse, wonderful, bright

Note: Agrees with sarga-jalāśayāḥ (treated as feminine plural here)

सर्ग-जलाशयाः (sarga-jalāśayāḥ) - reservoirs of creation; creations like reservoirs

(noun)

Nominative, masculine, plural of sarga-jalāśaya

sarga-jalāśaya - reservoirs of creation, creations like reservoirs

Compound type : tatpuruṣa (sarga+jalāśaya)

• sarga – creation, emanation, discharge
  noun (masculine)
  Root: sṛj (class 6)
• jalāśaya – reservoir, lake, pond, receptacle of water
  noun (masculine)

परस्परम् (parasparam) - mutually, reciprocally, with each other

(indeclinable)

संमिलन्ति (saṁmilanti) - they merge, they unite, they come together

(verb)

3rd person , plural, active, present (lat) of saṃmil

present active

3rd person plural, Parasmaipada

Prefix: sam

Root: mil (class 6)

घनताम् (ghanatām) - density, solidity, compactness

(noun)

Accusative, feminine, singular of ghanatā

ghanatā - density, solidity, compactness, thickness

derived from ghana (dense) with suffix -tā

यान्ति (yānti) - they go, they move, they attain, they reach

(verb)

3rd person , plural, active, present (lat) of yā

present active

3rd person plural, Parasmaipada

Root: yā (class 2)

च (ca) - and, also

(indeclinable)

अभितः (abhitaḥ) - on all sides, all around, near

(indeclinable)