महाभारतः mahābhārataḥ - book-3, chapter-2, verse-63

षडिन्द्रियाणि विषयं समागच्छन्ति वै यदा ।
तदा प्रादुर्भवत्येषां पूर्वसंकल्पजं मनः ॥६३॥

63. ṣaḍindriyāṇi viṣayaṁ samāgacchanti vai yadā ,
tadā prādurbhavatyeṣāṁ pūrvasaṁkalpajaṁ manaḥ.

63. ṣaṭ indriyāṇi viṣayam samāgacchanti vai yadā
tadā prādurbhavati eṣām pūrvasaṅkalpajam manaḥ

63. Indeed, when the six senses come into contact with their respective objects, then their mind, which arises from previous thoughts and intentions, manifests.

Words meanings summery:

• षट् (ṣaṭ) - six

• इन्द्रियाणि (indriyāṇi) - senses (senses, sense organs)

• विषयम् (viṣayam) - objects (of senses) (object, sense-object, sphere)

• समागच्छन्ति (samāgacchanti) - come into contact with, encounter (come together, meet, encounter)

• वै (vai) - indeed (emphatic) (indeed, verily, certainly)

• यदा (yadā) - when (when, at which time)

• तदा (tadā) - then (then, at that time)

• प्रादुर्भवति (prādurbhavati) - manifests (appears, manifests, becomes visible)

• एषाम् (eṣām) - of these (the senses) (of these, belonging to these)

• पूर्वसङ्कल्पजम् (pūrvasaṅkalpajam) - arising from previous thoughts and intentions (born from previous thought/resolve/intention)

• मनः (manaḥ) - mind (mind, intellect, heart)

Words meanings and morphology

षट् (ṣaṭ) - six

(numeral)

Note: Qualifies indriyāṇi

इन्द्रियाणि (indriyāṇi) - senses (senses, sense organs)

(noun)

Nominative, neuter, plural of indriya

indriya - sense, sense organ, faculty

Derived from indra

Note: Subject of samāgacchanti

विषयम् (viṣayam) - objects (of senses) (object, sense-object, sphere)

(noun)

Accusative, masculine, singular of viṣaya

viṣaya - object, sense-object, sphere, domain, range

Note: Object of samāgacchanti

समागच्छन्ति (samāgacchanti) - come into contact with, encounter (come together, meet, encounter)

(verb)

3rd person , plural, active, present (laṭ) of samāgam

Present tense, 3rd person plural

From root gam (class 1, gacchati) with prefixes sam and ā

Prefixes: sam+ā

Root: gam (class 1)

वै (vai) - indeed (emphatic) (indeed, verily, certainly)

(indeclinable)

यदा (yadā) - when (when, at which time)

(indeclinable)

Adverb formed from pronominal base ya

तदा (tadā) - then (then, at that time)

(indeclinable)

Adverb formed from pronominal base ta

प्रादुर्भवति (prādurbhavati) - manifests (appears, manifests, becomes visible)

(verb)

3rd person , singular, active, present (laṭ) of prādurbhū

Present tense, 3rd person singular

Compound verb from prādus (visible, manifest) and root bhū (to be, to become)

Root: bhū (class 1)

एषाम् (eṣām) - of these (the senses) (of these, belonging to these)

(pronoun)

Genitive, neuter, plural of idam

idam - this, these

Demonstrative pronoun

Note: Possessive, referring to the senses

पूर्वसङ्कल्पजम् (pūrvasaṅkalpajam) - arising from previous thoughts and intentions (born from previous thought/resolve/intention)

(adjective)

Nominative, neuter, singular of pūrvasaṅkalpaja

pūrvasaṅkalpaja - born from previous thought/resolve/intention

Tatpurusha compound. ja suffix means "born from"

Compound type : tatpurusha (pūrva+saṅkalpa+ja)

• pūrva – previous, former, prior
  adjective (neuter)
• saṅkalpa – thought, intention, resolve, conception
  noun (masculine)
  Prefix: sam
• ja – born, produced, arisen from
  adjective (neuter)
  Suffix indicating origin
  Root: jan (class 4)

Note: Qualifies manaḥ

मनः (manaḥ) - mind (mind, intellect, heart)

(noun)

Nominative, neuter, singular of manas

manas - mind, intellect, heart, consciousness

Root: man (class 4)

Note: Subject of prādurbhavati