योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-16, verse-19

पातालाद्गच्छता पृथ्वीं पृथ्व्याः पातालगामिना ।
कूपकाष्ठं कुदाम्नेव वेष्टितोऽस्मि कुचेतसा ॥ १९ ॥

pātālādgacchatā pṛthvīṃ pṛthvyāḥ pātālagāminā ,
kūpakāṣṭhaṃ kudāmneva veṣṭito'smi kucetasā 19

19. pātālāt gacchatā pṛthvīm pṛthvyāḥ pātālagāminā
kūpakāṣṭham kudāmnā iva veṣṭitaḥ asmi kucetasā

19. I am bound by my corrupted mind, just as a log in a well is entangled by a bad rope, through the agency of one who pulls it from the netherworld (Pātāla) to Earth, and another who pulls it from Earth to the netherworld.

Words meanings summery:

• पातालात् (pātālāt) - from the netherworld, from Pātāla

• गच्छता (gacchatā) - by the agent who goes/pulls (by the one going, by the one moving)

• पृथ्वीम् (pṛthvīm) - to the Earth, to the ground

• पृथ्व्याः (pṛthvyāḥ) - from the Earth, from the ground

• पातालगामिना (pātālagāminā) - by the agent who goes/pulls to the netherworld (by the one going to Pātāla (the netherworld))

• कूपकाष्ठम् (kūpakāṣṭham) - a log in a well, a piece of wood from a well

• कुदाम्ना (kudāmnā) - by a bad rope, by an inferior rope

• इव (iva) - like, as, as if

• वेष्टितः (veṣṭitaḥ) - entangled, bound (bound, encircled, wrapped)

• अस्मि (asmi) - I am

• कुचेतसा (kucetasā) - by the bad mind, by the corrupted mind

Words meanings and morphology

पातालात् (pātālāt) - from the netherworld, from Pātāla

(noun)

Ablative, neuter, singular of pātāla

pātāla - the netherworld, one of the seven regions below the earth

गच्छता (gacchatā) - by the agent who goes/pulls (by the one going, by the one moving)

(adjective)

Instrumental, masculine, singular of gacchat

gacchat - going, moving, proceeding

Present Active Participle

Root gam + śatṛ suffix

Root: gam (class 1)

पृथ्वीम् (pṛthvīm) - to the Earth, to the ground

(noun)

Accusative, feminine, singular of pṛthvī

pṛthvī - Earth, ground, land

पृथ्व्याः (pṛthvyāḥ) - from the Earth, from the ground

(noun)

Ablative, feminine, singular of pṛthvī

pṛthvī - Earth, ground, land

पातालगामिना (pātālagāminā) - by the agent who goes/pulls to the netherworld (by the one going to Pātāla (the netherworld))

(adjective)

Instrumental, masculine, singular of pātālagāmin

pātālagāmin - going to the netherworld, descending to Pātāla

Agent noun/adjective

Compound of pātāla and gāmin (from root gam)

Compound type : tatpuruṣa (pātāla+gāmin)

• pātāla – the netherworld, one of the seven regions below the earth
  noun (neuter)
• gāmin – going, moving, reaching, resorting to
  adjective
  Agent noun/adjective
  Root gam + ṇin suffix
  Root: gam (class 1)

कूपकाष्ठम् (kūpakāṣṭham) - a log in a well, a piece of wood from a well

(noun)

Nominative, neuter, singular of kūpakāṣṭha

kūpakāṣṭha - a log in a well, a piece of wood from a well

Tatpuruṣa compound

Compound type : tatpuruṣa (kūpa+kāṣṭha)

• kūpa – well, pit
  noun (masculine)
• kāṣṭha – wood, log, timber
  noun (neuter)

कुदाम्ना (kudāmnā) - by a bad rope, by an inferior rope

(noun)

Instrumental, neuter, singular of kudāman

kudāman - bad rope, inferior rope

Karmadhāraya compound

Compound type : karmadhāraya (ku+dāman)

• ku – bad, evil, deficient, wrong
  indeclinable
  Prefix indicating badness or deficiency
• dāman – rope, cord, string
  noun (neuter)

इव (iva) - like, as, as if

(indeclinable)

वेष्टितः (veṣṭitaḥ) - entangled, bound (bound, encircled, wrapped)

(adjective)

Nominative, masculine, singular of veṣṭita

veṣṭita - bound, encircled, wrapped, covered

Past Passive Participle

Root veṣṭ + kta suffix

Root: veṣṭ (class 10)

अस्मि (asmi) - I am

(verb)

1st person , singular, active, present indicative (laṭ) of as

Present Indicative

Root: as (class 2)

कुचेतसा (kucetasā) - by the bad mind, by the corrupted mind

(noun)

Instrumental, neuter, singular of kucetas

kucetas - bad mind, corrupted mind, evil thought

Karmadhāraya compound

Compound type : karmadhāraya (ku+cetas)

• ku – bad, evil, deficient, wrong
  indeclinable
  Prefix indicating badness or deficiency
• cetas – mind, thought, intellect, consciousness
  noun (neuter)