योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-128, verse-51

अवस्थाबीजनिद्रादिनिर्मुक्ता चित्सुखात्मिका ।
योगस्य सेयं वा निष्ठा सुखं संवेदनं महत् ॥ ५१ ॥

avasthābījanidrādinirmuktā citsukhātmikā ,
yogasya seyaṃ vā niṣṭhā sukhaṃ saṃvedanaṃ mahat 51

51. avasthābījanidrādinirmuktā citsukhātmikā yogasya
sā iyam vā niṣṭhā sukham saṃvedanam mahat

51. avasthābījanidrādinirmuktā citsukhātmikā sā
iyam vā yogasya niṣṭhā mahat sukham saṃvedanam

51. This state is freed from the seed of (ordinary) states, sleep (nidrā), and so on, and its nature is consciousness and bliss. This very state is either the culmination (niṣṭhā) of yoga, or the great blissful direct experience.

Words meanings summery:

• अवस्थाबीजनिद्रादिनिर्मुक्ता (avasthābījanidrādinirmuktā) - freed from the seed of states and sleep etc.

• चित्सुखात्मिका (citsukhātmikā) - whose nature is consciousness and bliss

• योगस्य (yogasya) - of yoga

• सा (sā) - that, she

• इयम् (iyam) - this, she (here)

• वा (vā) - or

• निष्ठा (niṣṭhā) - culmination, conclusion, perfection, steadfastness

• सुखम् (sukham) - blissful (experience) (bliss, happiness)

• संवेदनम् (saṁvedanam) - direct experience, consciousness, sensation

• महत् (mahat) - great, vast, important

Words meanings and morphology

अवस्थाबीजनिद्रादिनिर्मुक्ता (avasthābījanidrādinirmuktā) - freed from the seed of states and sleep etc.

(adjective)

Nominative, feminine, singular of avasthābījanidrādinirmukta

avasthābījanidrādinirmukta - freed from the seed of ordinary states, sleep, and so on

Past Passive Participle

Compound of 'avasthā-bīja-nidrā-ādi' (seed of states, sleep, etc.) and 'nirmukta' (freed from). 'Nirmukta' is from the root 'muc' with prefix 'nir'.

Compound type : tatpurusha / bahuvrihi (avasthābījanidrādi+nirmukta)

• avasthābījanidrādi – seed of states, sleep, and so on
  noun (feminine)
  Dvandva-like compound listing 'avasthābīja' (seed of states), 'nidrā' (sleep), and 'ādi' (etcetera).
• nirmukta – released, liberated, freed
  adjective (feminine)
  Past Passive Participle
  Derived from the root 'muc' (to release) with prefix 'nir'.
  Prefix: nir
  Root: muc (class 6)

चित्सुखात्मिका (citsukhātmikā) - whose nature is consciousness and bliss

(adjective)

Nominative, feminine, singular of citsukhātmikā

citsukhātmika - having the nature of consciousness and bliss

Compound of 'cit' (consciousness), 'sukha' (bliss), and 'ātmika' (whose nature is).

Compound type : bahuvrihi (cit+sukha+ātmika)

• cit – consciousness, thought, mind
  noun (feminine)
• sukha – pleasure, happiness, bliss
  noun (neuter)
• ātmika – whose nature is, pertaining to the self
  adjective (feminine)
  Derived from 'ātman' (self) with the suffix '-ika'.

योगस्य (yogasya) - of yoga

(noun)

Genitive, masculine, singular of yoga

yoga - union, connection, discipline, spiritual practice, means

From root 'yuj' (to join, to unite).

Root: yuj (class 7)

सा (sā) - that, she

(pronoun)

Nominative, feminine, singular of tad

tad - that, he, she, it

इयम् (iyam) - this, she (here)

(pronoun)

Nominative, feminine, singular of idam

idam - this, this one

वा (vā) - or

(indeclinable)

निष्ठा (niṣṭhā) - culmination, conclusion, perfection, steadfastness

(noun)

Nominative, feminine, singular of niṣṭhā

niṣṭhā - culmination, end, conclusion, perfection, firm devotion, steadfastness

From root 'sthā' (to stand) with prefix 'ni'.

Prefix: ni

Root: sthā (class 1)

सुखम् (sukham) - blissful (experience) (bliss, happiness)

(noun)

Nominative, neuter, singular of sukha

sukha - pleasure, happiness, bliss, ease

संवेदनम् (saṁvedanam) - direct experience, consciousness, sensation

(noun)

Nominative, neuter, singular of saṃvedana

saṁvedana - consciousness, perception, direct experience, sensation

From root 'vid' (to know) with prefix 'sam'.

Prefix: sam

Root: vid (class 6)

महत् (mahat) - great, vast, important

(adjective)

Nominative, neuter, singular of mahat

mahat - great, large, vast, mighty, important