महाभारतः mahābhārataḥ - book-13, chapter-17, verse-160

निर्विघ्ना निश्चला रुद्रे भक्तिरव्यभिचारिणी ।
तस्यैव च प्रसादेन भक्तिरुत्पद्यते नृणाम् ।
यया यान्ति परां सिद्धिं तद्भावगतचेतसः ॥१६०॥

160. nirvighnā niścalā rudre bhaktiravyabhicāriṇī ,
tasyaiva ca prasādena bhaktirutpadyate nṛṇām ,
yayā yānti parāṁ siddhiṁ tadbhāvagatacetasaḥ.

160. nirvighnā niścalā rudre bhaktiḥ
avyabhicāriṇī tasya eva ca prasādena
bhaktiḥ utpadyate nṛṇām yayā yānti
parām siddhim tadbhāvagatacetasaḥ

160. nṛṇām rudre nirvighnā niścalā avyabhicāriṇī bhaktiḥ tasya eva ca prasādena utpadyate.
yayā tadbhāvagatacetasaḥ parām siddhim yānti.

160. Unimpeded, unwavering, and unswerving devotion (bhakti) to Rudra arises for human beings only by His grace. Through this (devotion), those whose minds are absorbed in His intrinsic nature (tad-bhāva) attain the supreme accomplishment.

Words meanings summery:

• निर्विघ्ना (nirvighnā) - unimpeded, without obstacles

• निश्चला (niścalā) - unmoving, steadfast, firm

• रुद्रे (rudre) - in Rudra, to Rudra

• भक्तिः (bhaktiḥ) - devotion, faith, attachment

• अव्यभिचारिणी (avyabhicāriṇī) - unswerving, unwavering, undivided

• तस्य (tasya) - of him, his

• एव (eva) - only, indeed, just

• च (ca) - and, also

• प्रसादेन (prasādena) - by the grace, by the favor

• भक्तिः (bhaktiḥ) - devotion, faith

• उत्पद्यते (utpadyate) - arises, is produced, is born

• नृणाम् (nṛṇām) - of men, for human beings

• यया (yayā) - by which (feminine, singular)

• यान्ति (yānti) - they go, they attain

• पराम् (parām) - supreme, highest, ultimate

• सिद्धिम् (siddhim) - accomplishment, perfection, success, liberation

• तद्भावगतचेतसः (tadbhāvagatacetasaḥ) - whose minds are absorbed in that (His) nature

Words meanings and morphology

निर्विघ्ना (nirvighnā) - unimpeded, without obstacles

(adjective)

Nominative, feminine, singular of nirvighna

nirvighna - without obstacles

Compound type : bahuvrīhi (nis+vighna)

• nis – without, negative prefix
  indeclinable
• vighna – obstacle, impediment
  noun (masculine)

निश्चला (niścalā) - unmoving, steadfast, firm

(adjective)

Nominative, feminine, singular of niścala

niścala - unmoving, steady, firm

Compound type : bahuvrīhi (nis+cala)

• nis – without, negative prefix
  indeclinable
• cala – moving, unsteady
  adjective
  From root cal (to move)
  Root: cal (class 1)

रुद्रे (rudre) - in Rudra, to Rudra

(proper noun)

Locative, masculine, singular of rudra

rudra - Rudra (a Vedic deity, later identified with Shiva)

भक्तिः (bhaktiḥ) - devotion, faith, attachment

(noun)

Nominative, feminine, singular of bhakti

bhakti - devotion, faith, adoration

From root bhaj (to divide, share, adore)

Root: bhaj (class 1)

अव्यभिचारिणी (avyabhicāriṇī) - unswerving, unwavering, undivided

(adjective)

Nominative, feminine, singular of avyabhicāriṇ

avyabhicāriṇ - unswerving, faithful, constant

Feminine form of avyabhicārin, a nañ-tatpuruṣa compound

Compound type : nañ-tatpuruṣa (a+vyabhicāriṇ)

• a – not, non-
  indeclinable
  Negative prefix
• vyabhicāriṇ – swerving, deviating, inconstant
  adjective
  Present Active Participle
  From root car (to move) with prefixes vi- and abhi-
  Prefixes: vi+abhi
  Root: car (class 1)

तस्य (tasya) - of him, his

(pronoun)

Genitive, masculine, singular of tad

tad - that, him

Note: Refers to Rudra

एव (eva) - only, indeed, just

(indeclinable)

च (ca) - and, also

(indeclinable)

प्रसादेन (prasādena) - by the grace, by the favor

(noun)

Instrumental, masculine, singular of prasāda

prasāda - grace, favor, tranquility, clearness

From root sad (to sit) with prefix pra-

Prefix: pra

Root: sad (class 1)

भक्तिः (bhaktiḥ) - devotion, faith

(noun)

Nominative, feminine, singular of bhakti

bhakti - devotion, faith, adoration

From root bhaj (to divide, share, adore)

Root: bhaj (class 1)

उत्पद्यते (utpadyate) - arises, is produced, is born

(verb)

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

From root pad (to go) with prefix ud-

Prefix: ud

Root: pad (class 4)

नृणाम् (nṛṇām) - of men, for human beings

(noun)

Genitive, masculine, plural of nṛ

nṛ - man, human being

यया (yayā) - by which (feminine, singular)

(pronoun)

Instrumental, feminine, singular of yad

yad - which, who

Note: Refers to 'bhakti'

यान्ति (yānti) - they go, they attain

(verb)

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

Root: yā (class 2)

पराम् (parām) - supreme, highest, ultimate

(adjective)

Accusative, feminine, singular of parā

parā - supreme, highest, ultimate

Feminine form of para

सिद्धिम् (siddhim) - accomplishment, perfection, success, liberation

(noun)

Accusative, feminine, singular of siddhi

siddhi - accomplishment, perfection, success, supernatural power

From root sidh (to succeed, attain)

Root: sidh (class 4)

तद्भावगतचेतसः (tadbhāvagatacetasaḥ) - whose minds are absorbed in that (His) nature

(adjective)

Nominative, masculine, plural of tadbhāvagatacetas

tadbhāvagatacetas - whose mind (cetas) has gone (gata) to that (tad) intrinsic nature (bhāva)

Compound type : bahuvrīhi (tadbhāva+gata+cetas)

• tadbhāva – that nature, His intrinsic nature
  noun (masculine)
• gata – gone, attained, absorbed in
  adjective
  Past Passive Participle
  From root gam (to go)
  Root: gam (class 1)
• cetas – mind, consciousness, heart
  noun (neuter)

Note: Refers to the 'nṛṇām' (humans)