योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-22, verse-32

भवबहुलनिशानितान्तनिद्रासततविवेकविबोधवारिसेकैः ।
प्रगलति हिमशीतलैरशेषा शरदि महामिहिकेव चेतसीति ॥ ३२ ॥

bhavabahulaniśānitāntanidrāsatatavivekavibodhavārisekaiḥ ,
pragalati himaśītalairaśeṣā śaradi mahāmihikeva cetasīti 32

32. bhavabahulaniśānitāntanidrāsatatavivekavibodhavārisekaiḥ
pragalati himaśītalaiḥ aśeṣā śaradi mahāmihikā iva cetasi iti

32. śaradi mahāmihikā iva himaśītalaiḥ
bhavabahulaniśānitāntanidrāsatatavivekavibodhavārisekaiḥ cetasi aśeṣā pragalati iti

32. Just as a great fog completely melts away in autumn, so too, the profound slumber of countless cycles of existence (saṃsāra) thoroughly dissolves within the mind, through the continuous, ice-cool sprinkling of the waters of discernment and awakening.

Words meanings summery:

• भवबहुलनिशानितान्तनिद्रासततविवेकविबोधवारिसेकैः (bhavabahulaniśānitāntanidrāsatatavivekavibodhavārisekaiḥ) - by the sprinklings of water that bring constant discrimination and awakening against the profound sleep which is the night of abundant existences (saṃsāra)

• प्रगलति (pragalati) - melts away, dissolves, disappears

• हिमशीतलैः (himaśītalaiḥ) - by the cool as ice, by the snow-cold

• अशेषा (aśeṣā) - completely, entirely (referring to the profound sleep of existence which is melting away) (complete, entire, without remainder)

• शरदि (śaradi) - in autumn, during the autumn season

• महामिहिका (mahāmihikā) - a great fog, a thick mist

• इव (iva) - like, as if, similar to

• चेतसि (cetasi) - in the mind, in consciousness, in the heart

• इति (iti) - thus, concluding a statement or thought (thus, so, in this manner)

Words meanings and morphology

भवबहुलनिशानितान्तनिद्रासततविवेकविबोधवारिसेकैः (bhavabahulaniśānitāntanidrāsatatavivekavibodhavārisekaiḥ) - by the sprinklings of water that bring constant discrimination and awakening against the profound sleep which is the night of abundant existences (saṃsāra)

(noun)

Instrumental, masculine, plural of bhavabahulaniśānitāntanidrāsatatavivekavibodhavāriseka

bhavabahulaniśānitāntanidrāsatatavivekavibodhavāriseka - sprinklings of water of constant discrimination and awakening that remove the profound sleep, which is the night of abundant existences (saṃsāra)

Compound type : Tatpuruṣa (bhava+bahula+niśā+nitānta+nidrā+satata+viveka+vibodha+vāri+seka)

• bhava – existence, birth, cycle of rebirth (saṃsāra)
  noun (masculine)
  Root: bhū (class 1)
• bahula – abundant, numerous, much
  adjective (masculine)
• niśā – night, darkness
  noun (feminine)
• nitānta – intense, profound, excessive
  adjective (masculine)
• nidrā – sleep, slumber, profound sleep
  noun (feminine)
  Prefix: ni
  Root: drā (class 2)
• satata – constant, continuous, always
  adjective (masculine)
• viveka – discrimination, discernment, discretion
  noun (masculine)
  Prefix: vi
  Root: vic (class 6)
• vibodha – awakening, enlightenment, understanding
  noun (masculine)
  Prefix: vi
  Root: budh (class 1)
• vāri – water
  noun (neuter)
• seka – sprinkling, showering, effusion
  noun (masculine)
  Root: sic (class 6)

प्रगलति (pragalati) - melts away, dissolves, disappears

(verb)

3rd person , singular, active, present indicative (laṭ) of pragal

Prefix: pra

Root: gal (class 1)

हिमशीतलैः (himaśītalaiḥ) - by the cool as ice, by the snow-cold

(adjective)

Instrumental, masculine, plural of himaśītala

himaśītala - cool as ice, snow-cold

Compound type : Tatpuruṣa (hima+śītala)

• hima – ice, snow, frost
  noun (neuter)
• śītala – cold, cool, frigid
  adjective (masculine)

Note: Agrees with 'sekaiḥ' (sprinklings).

अशेषा (aśeṣā) - completely, entirely (referring to the profound sleep of existence which is melting away) (complete, entire, without remainder)

(adjective)

Nominative, feminine, singular of aśeṣa

aśeṣa - complete, entire, without remainder

Compound type : Nañ-Tatpuruṣa (a+śeṣa)

• a – not, non-, un-
  indeclinable
  Negative prefix
• śeṣa – remainder, residue, balance
  noun (masculine)
  Root: śiṣ (class 7)

Note: Agrees with the implicitly understood subject, 'profound sleep' (nidrā), which is feminine. Functions adverbially in the English translation.

शरदि (śaradi) - in autumn, during the autumn season

(noun)

Locative, feminine, singular of śarad

śarad - autumn, autumn season

महामिहिका (mahāmihikā) - a great fog, a thick mist

(noun)

Nominative, feminine, singular of mahāmihikā

mahāmihikā - great fog, thick mist

Compound type : Karmadhāraya (mahā+mihikā)

• mahā – great, large, mighty
  adjective
• mihikā – fog, mist, haze
  noun (feminine)

इव (iva) - like, as if, similar to

(indeclinable)

चेतसि (cetasi) - in the mind, in consciousness, in the heart

(noun)

Locative, neuter, singular of cetas

cetas - mind, consciousness, intellect, heart

Root: cit (class 1)

इति (iti) - thus, concluding a statement or thought (thus, so, in this manner)

(indeclinable)