महाभारतः mahābhārataḥ - book-12, chapter-187, verse-41

इन्द्रियैस्तु प्रदीपार्थं कुरुते बुद्धिसप्तमैः ।
निर्विचेष्टैरजानद्भिः परमात्मा प्रदीपवत् ॥४१॥

41. indriyaistu pradīpārthaṁ kurute buddhisaptamaiḥ ,
nirviceṣṭairajānadbhiḥ paramātmā pradīpavat.

41. indriyaiḥ tu pradīpārtham kurute buddhisaptamaiḥ
nirviceṣṭaiḥ ajānadbhiḥ paramātmā pradīpavat

41. paramātmā pradīpavat [asti] tu nirviceṣṭaiḥ ajānadbhiḥ
buddhisaptamaiḥ indriyaiḥ pradīpārtham kurute

41. The Supreme Self (paramātman) is like a lamp. Through the senses (indriyas) — which are inactive and unknowing — along with the intellect (buddhi) as the seventh faculty, it generates illumination for their purpose.

Words meanings summery:

• इन्द्रियैः (indriyaiḥ) - by the five cognitive and five conative senses (by the senses, by the faculties)

• तु (tu) - but, however, on the other hand

• प्रदीपार्थम् (pradīpārtham) - to cause illumination, like a lamp (for the purpose of a lamp, for illumination)

• कुरुते (kurute) - he causes, he brings about (he does, he makes, he performs)

• बुद्धिसप्तमैः (buddhisaptamaiḥ) - refers to the senses, with the intellect (buddhi) being the seventh among them (mind + 5 senses + intellect) (by those having intellect as the seventh, with intellect as the seventh)

• निर्विचेष्टैः (nirviceṣṭaiḥ) - refers to the senses (indriyas) as inherently inert without the Self's illumination (by the inactive, by the motionless, by the inert)

• अजानद्भिः (ajānadbhiḥ) - by the senses (indriyas) that do not possess intrinsic knowledge (by the unknowing, by the ignorant)

• परमात्मा (paramātmā) - The ultimate consciousness (paramātman) (the Supreme Self, the highest Self)

• प्रदीपवत् (pradīpavat) - acting as a lamp, illuminating (like a lamp, endowed with a lamp)

Words meanings and morphology

इन्द्रियैः (indriyaiḥ) - by the five cognitive and five conative senses (by the senses, by the faculties)

(noun)

Instrumental, neuter, plural of indriya

indriya - sense, faculty, organ of sense

तु (tu) - but, however, on the other hand

(indeclinable)

प्रदीपार्थम् (pradīpārtham) - to cause illumination, like a lamp (for the purpose of a lamp, for illumination)

(noun)

Accusative, masculine, singular of pradīpārtha

pradīpārtha - purpose of a lamp, for illumination

Compound type : tatpuruṣa (pradīpa+artha)

• pradīpa – lamp, light, illumination
  noun (masculine)
  from pra-dīp (to shine forth)
  Prefix: pra
  Root: dīp (class 4)
• artha – purpose, meaning, object, wealth
  noun (masculine)

Note: Acts as an adverb here, 'for the purpose of a lamp' or 'like a lamp'.

कुरुते (kurute) - he causes, he brings about (he does, he makes, he performs)

(verb)

3rd person , singular, middle, present (laṭ) of kṛ

root verb

present tense, third person, singular, middle voice

Root: kṛ (class 8)

बुद्धिसप्तमैः (buddhisaptamaiḥ) - refers to the senses, with the intellect (buddhi) being the seventh among them (mind + 5 senses + intellect) (by those having intellect as the seventh, with intellect as the seventh)

(adjective)

Instrumental, masculine, plural of buddhisaptama

buddhisaptama - having intellect as the seventh

Compound type : bahuvrīhi (buddhi+saptama)

• buddhi – intellect, understanding, reason, perception
  noun (feminine)
  Root: budh (class 1)
• saptama – seventh
  adjective (masculine)

Note: Agrees with indriyaiḥ.

निर्विचेष्टैः (nirviceṣṭaiḥ) - refers to the senses (indriyas) as inherently inert without the Self's illumination (by the inactive, by the motionless, by the inert)

(adjective)

Instrumental, masculine, plural of nirviceṣṭa

nirviceṣṭa - inactive, motionless, inert, without effort

from nir + viceṣṭa (motion)

Compound type : tatpuruṣa (nir+viceṣṭa)

• nis – out, forth, without
  prefix
• viceṣṭa – movement, action, effort
  noun (neuter)
  from vi-ceṣṭ (to move)
  Prefix: vi
  Root: ceṣṭ (class 1)

Note: Agrees with indriyaiḥ.

अजानद्भिः (ajānadbhiḥ) - by the senses (indriyas) that do not possess intrinsic knowledge (by the unknowing, by the ignorant)

(adjective)

Instrumental, masculine, plural of ajānat

ajānat - unknowing, ignorant

present active participle

from a + jñā (to know) with present participle suffix -at

Compound type : tatpuruṣa (a+jānat)

• a – not, non-
  prefix
• jānat – knowing
  adjective (masculine)
  present active participle
  from jñā (to know)
  Root: jñā (class 9)

Note: Agrees with indriyaiḥ.

परमात्मा (paramātmā) - The ultimate consciousness (paramātman) (the Supreme Self, the highest Self)

(noun)

Nominative, masculine, singular of paramātman

paramātman - Supreme Self, highest soul

Compound type : tatpuruṣa (parama+ātman)

• parama – highest, supreme, ultimate
  adjective (masculine)
• ātman – Self, soul, essence
  noun (masculine)

प्रदीपवत् (pradīpavat) - acting as a lamp, illuminating (like a lamp, endowed with a lamp)

(indeclinable)

suffix -vat indicating comparison or possession

Note: Can also be treated as an adjective, nominative singular masculine, but here it functions adverbially.