महाभारतः mahābhārataḥ - book-5, chapter-43, verse-27

ततो यज्ञः प्रतायेत सत्यस्यैवावधारणात् ।
मनसान्यस्य भवति वाचान्यस्योत कर्मणा ।
संकल्पसिद्धः पुरुषः संकल्पानधितिष्ठति ॥२७॥

27. tato yajñaḥ pratāyeta satyasyaivāvadhāraṇāt ,
manasānyasya bhavati vācānyasyota karmaṇā ,
saṁkalpasiddhaḥ puruṣaḥ saṁkalpānadhitiṣṭhati.

27. tataḥ yajñaḥ pratāyeta satyasya eva
avadhāraṇāt manasā anyasya bhavati
vācā anyasya uta karmaṇā saṃkalpasiddhaḥ
puruṣaḥ saṃkalpān adhitiṣṭhati

27. A Vedic ritual (yajña) should then be performed only by a firm grasp of truth. What is conceived by the mind, what is spoken by speech, and what is done by action may differ from person to person. A person (puruṣa) whose firm intention (saṃkalpa) is accomplished effectively masters all intentions.

Words meanings summery:

• ततः (tataḥ) - then, thereafter, from that

• यज्ञः (yajñaḥ) - ritual sacrifice, worship

• प्रतायेत (pratāyeta) - may be performed, may be extended, may spread

• सत्यस्य (satyasya) - of truth, regarding truth

• एव (eva) - indeed, only, certainly

• अवधारणात् (avadhāraṇāt) - from determination, from ascertaining, from understanding

• मनसा (manasā) - by the mind, with the mind

• अन्यस्य (anyasya) - of another, another's

• भवति (bhavati) - is, becomes, exists

• वाचा (vācā) - by speech, with words

• अन्यस्य (anyasya) - of another, another's

• उत (uta) - and, also, moreover

• कर्मणा (karmaṇā) - by action, by deed

• संकल्पसिद्धः (saṁkalpasiddhaḥ) - one whose intention is fulfilled, accomplished in resolve

• पुरुषः (puruṣaḥ) - person, human being, cosmic person

• संकल्पान् (saṁkalpān) - intentions, resolves (plural)

• अधितिष्ठति (adhitiṣṭhati) - presides over, masters, stands upon

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from that

(indeclinable)

यज्ञः (yajñaḥ) - ritual sacrifice, worship

(noun)

Nominative, masculine, singular of yajña

yajña - ritual sacrifice, worship, offering

Root: yaj (class 1)

प्रतायेत (pratāyeta) - may be performed, may be extended, may spread

(verb)

3rd person , singular, passive, optative (vidhiliṅ) of pratāy

Derived from root tan (to stretch) in passive/middle voice with prefix pra

Prefix: pra

Root: tan (class 8)

सत्यस्य (satyasya) - of truth, regarding truth

(noun)

Genitive, neuter, singular of satya

satya - truth, reality, genuineness

एव (eva) - indeed, only, certainly

(indeclinable)

अवधारणात् (avadhāraṇāt) - from determination, from ascertaining, from understanding

(noun)

Ablative, neuter, singular of avadhāraṇa

avadhāraṇa - determination, ascertainment, understanding

Prefix: ava

Root: dhṛ (class 1)

मनसा (manasā) - by the mind, with the mind

(noun)

Instrumental, neuter, singular of manas

manas - mind, intellect, heart

Root: man (class 4)

अन्यस्य (anyasya) - of another, another's

(pronoun)

Genitive, masculine/neuter, singular of anya

anya - other, another

भवति (bhavati) - is, becomes, exists

(verb)

3rd person , singular, active, present indicative (lat) of bhū

Root: bhū (class 1)

वाचा (vācā) - by speech, with words

(noun)

Instrumental, feminine, singular of vāc

vāc - speech, word, voice

Root: vac (class 2)

अन्यस्य (anyasya) - of another, another's

(pronoun)

Genitive, masculine/neuter, singular of anya

anya - other, another

उत (uta) - and, also, moreover

(indeclinable)

कर्मणा (karmaṇā) - by action, by deed

(noun)

Instrumental, neuter, singular of karman

karman - action, deed, ritual, result of action

Root: kṛ (class 8)

संकल्पसिद्धः (saṁkalpasiddhaḥ) - one whose intention is fulfilled, accomplished in resolve

(adjective)

Nominative, masculine, singular of saṃkalpasiddha

saṁkalpasiddha - accomplished through resolve, having fulfilled an intention

Compound type : bahuvrīhi (saṃkalpa+siddha)

• saṃkalpa – firm intention, resolve, determination, vow
  noun (masculine)
  Prefix: sam
  Root: kḷp
• siddha – accomplished, successful, perfected
  participle (masculine)
  Past Passive Participle
  Derived from root sidh (to succeed)
  Root: sidh

पुरुषः (puruṣaḥ) - person, human being, cosmic person

(noun)

Nominative, masculine, singular of puruṣa

puruṣa - person, man, male, the conscious principle

संकल्पान् (saṁkalpān) - intentions, resolves (plural)

(noun)

Accusative, masculine, plural of saṃkalpa

saṁkalpa - firm intention, resolve, determination, vow

Prefix: sam

Root: kḷp (class 1)

अधितिष्ठति (adhitiṣṭhati) - presides over, masters, stands upon

(verb)

3rd person , singular, active, present indicative (lat) of adhiṣṭhā

Prefix: adhi

Root: sthā (class 1)