महाभारतः mahābhārataḥ - book-12, chapter-183, verse-4

तत्र त्वेवंविधा वृत्तिर्लोके सत्यानृता भवेत् ।
धर्माधर्मौ प्रकाशश्च तमो दुःखं सुखं तथा ॥४॥

4. tatra tvevaṁvidhā vṛttirloke satyānṛtā bhavet ,
dharmādharmau prakāśaśca tamo duḥkhaṁ sukhaṁ tathā.

4. tatra tu evaṃvidhā vṛttiḥ loke satyānṛtā bhavet |
dharmādharmau prakāśaḥ ca tamaḥ duḥkham sukham tathā

4. tatra tu loke evaṃvidhā satyānṛtā vṛttiḥ bhavet tathā
dharmādharmau prakāśaḥ ca tamaḥ duḥkham sukham (ca) (bhavati)

4. Indeed, in that world, such a dual nature of truth and untruth exists. Thus, righteous action (dharma) and unrighteous action (adharma), light and darkness, sorrow and happiness also exist.

Words meanings summery:

• तत्र (tatra) - Refers to 'that world' or 'the afterlife / realm where these effects manifest'. (there, in that place, in that matter)

• तु (tu) - Adds emphasis or a slight contrast/qualification. (indeed, but, however, moreover)

• एवंविधा (evaṁvidhā) - Refers to the dual nature (truth/untruth, light/darkness, etc.). (such, of this kind, of this sort)

• वृत्तिः (vṛttiḥ) - Refers to the mode of existence or disposition. (state, condition, mode of being, activity)

• लोके (loke) - Refers to the sphere of existence or experience. (in the world, in the realm)

• सत्यानृता (satyānṛtā) - Describes the dual nature of existence. (related to truth and untruth, consisting of truth and untruth)

• भवेत् (bhavet) - Indicates potentiality or existence. (may be, should be, exists)

• धर्माधर्मौ (dharmādharmau) - Refers to moral and ethical actions and their opposites. (righteousness and unrighteousness, good and evil)

• प्रकाशः (prakāśaḥ) - light, radiance, manifestation

• च (ca) - and, also

• तमः (tamaḥ) - darkness, ignorance, inertia

• दुःखम् (duḥkham) - sorrow, suffering, pain

• सुखम् (sukham) - happiness, pleasure, joy

• तथा (tathā) - Connects to the previous idea of dualities existing. (thus, so, in that manner, also)

Words meanings and morphology

तत्र (tatra) - Refers to 'that world' or 'the afterlife / realm where these effects manifest'. (there, in that place, in that matter)

(indeclinable)

Adverb formed from demonstrative root 'tad'

तु (tu) - Adds emphasis or a slight contrast/qualification. (indeed, but, however, moreover)

(indeclinable)

Particle

एवंविधा (evaṁvidhā) - Refers to the dual nature (truth/untruth, light/darkness, etc.). (such, of this kind, of this sort)

(adjective)

Nominative, feminine, singular of evaṃvidha

evaṁvidha - such, of this kind

Bahuvrihi compound

Compound type : bahuvrihi (evam+vidha)

• evam – thus, so, in this manner
  indeclinable
• vidha – kind, sort, manner
  noun (masculine)
  From √dhā 'to place, put', often used as suffix for 'kind of'
  Root: dhā

वृत्तिः (vṛttiḥ) - Refers to the mode of existence or disposition. (state, condition, mode of being, activity)

(noun)

Nominative, feminine, singular of vṛtti

vṛtti - state, condition, mode of being, activity, occupation

From root √vṛt 'to be, to turn, to exist'

Root: vṛt (class 1)

लोके (loke) - Refers to the sphere of existence or experience. (in the world, in the realm)

(noun)

Locative, masculine, singular of loka

loka - world, realm, people

Root: lok

सत्यानृता (satyānṛtā) - Describes the dual nature of existence. (related to truth and untruth, consisting of truth and untruth)

(adjective)

Nominative, feminine, singular of satyānṛta

satyānṛta - truth and untruth, true and false

Dvandva compound

Compound type : dvandva (satya+anṛta)

• satya – truth, reality, true
  noun (neuter)
• anṛta – untruth, falsehood, false
  noun (neuter)
  Negation (a-privative) of ṛta (truth, cosmic order)
  Prefix: a

Note: Agrees with 'vṛttiḥ'.

भवेत् (bhavet) - Indicates potentiality or existence. (may be, should be, exists)

(verb)

3rd person , singular, active, optative (vidhiliṅ) of bhū

Optative active

From root √bhū (cl. 1)

Root: bhū (class 1)

धर्माधर्मौ (dharmādharmau) - Refers to moral and ethical actions and their opposites. (righteousness and unrighteousness, good and evil)

(noun)

Nominative, masculine, dual of dharmādharma

dharmādharma - righteousness and unrighteousness, good and evil

Dvandva compound

Compound type : dvandva (dharma+adharma)

• dharma – constitution, natural law, intrinsic nature, duty, righteousness
  noun (masculine)
  From root √dhṛ 'to hold, support'
  Root: dhṛ
• adharma – unrighteousness, injustice, non-duty
  noun (masculine)
  Negation (a-privative) of dharma
  Prefix: a

प्रकाशः (prakāśaḥ) - light, radiance, manifestation

(noun)

Nominative, masculine, singular of prakāśa

prakāśa - light, brightness, manifestation, clarity

From pra- + √kāś

Prefix: pra

Root: kāś

च (ca) - and, also

(indeclinable)

तमः (tamaḥ) - darkness, ignorance, inertia

(noun)

Nominative, neuter, singular of tamas

tamas - darkness, ignorance, inertia

Root: tam

दुःखम् (duḥkham) - sorrow, suffering, pain

(noun)

Nominative, neuter, singular of duḥkha

duḥkha - sorrow, suffering, pain, misery

Compound of duḥ- (bad) and kha (opening, wheel-spoke hole)

सुखम् (sukham) - happiness, pleasure, joy

(noun)

Nominative, neuter, singular of sukha

sukha - happiness, pleasure, ease, joy

Compound of su- (good) and kha (opening, wheel-spoke hole)

तथा (tathā) - Connects to the previous idea of dualities existing. (thus, so, in that manner, also)

(indeclinable)

Adverb