योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-91, verse-37

क्वचित्कज्जलजालस्य ज्वालाकनकदाकृते ।
खेदिना घनकूर्माभं सङ्गेनैव स्वकोटरे ॥ ३७ ॥

kvacitkajjalajālasya jvālākanakadākṛte ,
khedinā ghanakūrmābhaṃ saṅgenaiva svakoṭare 37

37. kvacit kajjalajālasya jvālākanakadā-ākṛte |
khedinā ghana-kūrmā-ābham saṅgena eva svakoṭare ||

37. kvacit kajjalajālasya jvālākanakadāākṛte khedinā
ghanakūrmābham svakoṭare saṅgena eva (sphurati)

37. Sometimes, (it manifests) in a form like gold-giving flames, (arising) from a mass of soot. (This is experienced) by a weary one, resembling a dense tortoise, through mere contact within its own cavity.

Words meanings summery:

• क्वचित् (kvacit) - sometimes, in some place

• कज्जलजालस्य (kajjalajālasya) - of a mass of soot (implying darkness or a dark cloud) (of a mass of soot, of a network of collyrium)

• ज्वालाकनकदा-आकृते (jvālākanakadā-ākṛte) - in a form like gold-giving flames (in a form that gives golden flames)

• खेदिना (khedinā) - by a weary (being) (by a weary one, by a sad one)

• घन-कूर्मा-आभम् (ghana-kūrmā-ābham) - resembling a dense tortoise (adverbial) (resembling a dense/dark tortoise)

• सङ्गेन (saṅgena) - by mere contact (by contact, by union, by association)

• एव (eva) - mere (only, just, indeed, merely)

• स्वकोटरे (svakoṭare) - within its own cavity (in one's own cavity, in one's own hollow)

Words meanings and morphology

क्वचित् (kvacit) - sometimes, in some place

(indeclinable)

कज्जलजालस्य (kajjalajālasya) - of a mass of soot (implying darkness or a dark cloud) (of a mass of soot, of a network of collyrium)

(noun)

Genitive, neuter, singular of kajjalajāla

kajjalajāla - mass of soot, network of collyrium

Compound of `kajjala` (soot, collyrium) and `jāla` (net, mass).

Compound type : tatpuruṣa (kajjala+jāla)

• kajjala – soot, collyrium
  noun (neuter)
• jāla – net, mass, multitude, collection
  noun (neuter)

Note: Refers to the origin or nature of the `ākṛti` (form).

ज्वालाकनकदा-आकृते (jvālākanakadā-ākṛte) - in a form like gold-giving flames (in a form that gives golden flames)

(noun)

Locative, feminine, singular of jvālākanakadā-ākṛti

jvālākanakadā-ākṛti - a form which gives/produces golden flames

Compound noun. `jvālā` (flame) + `kanakada` (gold-giving) + `ākṛti` (form).

Compound type : bahuvrīhi/tatpuruṣa (jvālā+kanakada+ākṛti)

• jvālā – flame, blaze
  noun (feminine)
• kanakada – gold-giving, bestowing gold
  adjective (neuter)
  Compound of `kanaka` (gold) and `da` (giving).
  Root: dā (class 3)
• ākṛti – form, shape, appearance, figure
  noun (feminine)
  From `ā-kṛ` (to make, form).
  Prefix: ā
  Root: kṛ (class 8)

खेदिना (khedinā) - by a weary (being) (by a weary one, by a sad one)

(adjective)

Instrumental, masculine, singular of khedin

khedin - weary, tired, sad, despondent

Agent noun/adjective

From root `khid` (to be distressed, weary) with suffix `-in`.

Root: khid (class 6)

Note: Refers to the experiencing agent.

घन-कूर्मा-आभम् (ghana-kūrmā-ābham) - resembling a dense tortoise (adverbial) (resembling a dense/dark tortoise)

(adjective)

of ghana-kūrmābha

ghana-kūrmābha - resembling a dense cloud-like tortoise

Compound: `ghana` (dense, cloud) + `kūrma` (tortoise) + `ābha` (resembling).

Compound type : tatpuruṣa/bahuvrīhi (ghana+kūrma+ābha)

• ghana – dense, thick, cloud, dark
  adjective (neuter)
• kūrma – tortoise, turtle
  noun (masculine)
• ābha – resembling, shining, like
  adjective (neuter)
  From root `ā-bhā` (to shine).
  Prefix: ā
  Root: bhā (class 2)

Note: Functions adverbially, describing the manner of the weary one's appearance.

सङ्गेन (saṅgena) - by mere contact (by contact, by union, by association)

(noun)

Instrumental, masculine, singular of saṅga

saṅga - contact, attachment, union, association

From `sam-gam` (to go together, unite).

Prefix: sam

Root: gam (class 1)

एव (eva) - mere (only, just, indeed, merely)

(indeclinable)

स्वकोटरे (svakoṭare) - within its own cavity (in one's own cavity, in one's own hollow)

(noun)

Locative, neuter, singular of svakoṭara

svakoṭara - one's own cavity, own hollow

Compound of `sva` (own) and `koṭara` (cavity, hollow, eye-socket).

Compound type : tatpuruṣa (sva+koṭara)

• sva – own, self
  pronoun (neuter)
• koṭara – cavity, hollow (e.g., of a tree), socket
  noun (neuter)