महाभारतः mahābhārataḥ - book-13, chapter-57, verse-16

शय्यासनानि यानानि योगयुक्ते तपोधने ।
अग्निप्रवेशे नियतं ब्रह्मलोको विधीयते ॥१६॥

16. śayyāsanāni yānāni yogayukte tapodhane ,
agnipraveśe niyataṁ brahmaloko vidhīyate.

16. śayyāsanāni yānāni yogayukte tapodhane |
agnipraveśe niyatam brahmalokaḥ vidhīyate

16. yogayukte tapodhane śayyāsanāni yānāni
agnipraveśe brahmalokaḥ niyatam vidhīyate

16. For an ascetic (tapodhana) steadfast in (yoga) spiritual discipline, (who eschews) beds, seats, and vehicles, the world of (brahman) is certainly attained upon entering fire.

Words meanings summery:

• शय्यासनानि (śayyāsanāni) - beds and seats

• यानानि (yānāni) - vehicles, conveyances

• योगयुक्ते (yogayukte) - engaged in (yoga) spiritual discipline, steadfast in (yoga)

• तपोधने (tapodhane) - in/for the ascetic whose wealth is austerity

• अग्निप्रवेशे (agnipraveśe) - in entering fire, upon entering fire

• नियतम् (niyatam) - certainly, constantly, perpetually

• ब्रह्मलोकः (brahmalokaḥ) - the world of (brahman), the realm of (brahman)

• विधीयते (vidhīyate) - is ordained, is prescribed, is attained, is accomplished

Words meanings and morphology

शय्यासनानि (śayyāsanāni) - beds and seats

(noun)

Nominative, neuter, plural of śayyāsana

śayyāsana - beds and seats, sleeping and sitting arrangements

Dvandva compound of śayyā (bed, couch) and āsana (seat).

Compound type : dvandva (śayyā+āsana)

• śayyā – bed, couch, sleeping
  noun (feminine)
  From root śī 'to sleep'
  Root: śī (class 2)
• āsana – seat, sitting, posture
  noun (neuter)
  From root ās 'to sit'
  Root: ās (class 2)

Note: Refers to worldly comforts.

यानानि (yānāni) - vehicles, conveyances

(noun)

Nominative, neuter, plural of yāna

yāna - going, moving, a vehicle, a conveyance

From root yā 'to go'.

Root: yā (class 2)

Note: Refers to worldly comforts.

योगयुक्ते (yogayukte) - engaged in (yoga) spiritual discipline, steadfast in (yoga)

(adjective)

Locative, masculine, singular of yogayukta

yogayukta - joined with (yoga), endowed with (yoga), absorbed in (yoga), steadfast in (yoga)

Past Passive Participle (from yuj with yoga)

Compound of yoga and yukta (PPP of yuj).

Compound type : tatpurusha (yoga+yukta)

• yoga – union, spiritual discipline, abstract meditation, exertion
  noun (masculine)
  From root yuj 'to join, to connect'
  Root: yuj (class 7)
• yukta – joined, united, intent, suitable, endowed with
  adjective (masculine)
  Past Passive Participle
  From root yuj 'to join'
  Root: yuj (class 7)

Note: Modifies 'tapodhane'.

तपोधने (tapodhane) - in/for the ascetic whose wealth is austerity

(noun)

Locative, masculine, singular of tapodhana

tapodhana - one whose wealth (dhana) is austerity (tapas), an ascetic, a sage

Bahuvrihi compound of tapas (austerity) and dhana (wealth).

Compound type : bahuvrihi (tapas+dhana)

• tapas – austerity, penance, heat, spiritual fervor
  noun (neuter)
  From root tap 'to heat, to perform austerity'
  Root: tap (class 1)
• dhana – wealth, riches, property
  noun (neuter)
  From root dhā 'to place, to hold'
  Root: dhā (class 3)

Note: Refers to the ascetic.

अग्निप्रवेशे (agnipraveśe) - in entering fire, upon entering fire

(noun)

Locative, masculine, singular of agnipraveśa

agnipraveśa - entering fire (a ritual act of self-immolation or severe penance)

Tatpurusha compound of agni (fire) and praveśa (entering).

Compound type : tatpurusha (agni+praveśa)

• agni – fire, god of fire
  noun (masculine)
• praveśa – entry, entrance, penetration
  noun (masculine)
  From pra + viś 'to enter'
  Prefix: pra
  Root: viś (class 6)

Note: Indicates the condition or occasion.

नियतम् (niyatam) - certainly, constantly, perpetually

(indeclinable)

Past Passive Participle

From ni + yam (to restrain), usually used adverbially as 'certainly'.

Prefix: ni

Root: yam (class 1)

Note: Adverbial.

ब्रह्मलोकः (brahmalokaḥ) - the world of (brahman), the realm of (brahman)

(noun)

Nominative, masculine, singular of brahmaloka

brahmaloka - the world or realm of (brahman) (the supreme being or creator god Brahmā)

Tatpurusha compound of brahman and loka (world).

Compound type : tatpurusha (brahman+loka)

• brahman – the Absolute, the universal spirit, the creator god Brahmā
  noun (neuter/masculine)
  From root bṛh 'to grow, to expand'
  Root: bṛh (class 1)
• loka – world, realm, sphere
  noun (masculine)
  From root lok 'to see, to perceive'
  Root: lok (class 1)

Note: Subject of 'vidhīyate'.

विधीयते (vidhīyate) - is ordained, is prescribed, is attained, is accomplished

(verb)

3rd person , singular, passive, present (laṭ) of vidhā

present passive, 3rd person singular

From vi + dhā (to place, arrange), present passive, 3rd singular.

Prefix: vi

Root: dhā (class 3)