योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-57, verse-45

अस्पन्दस्य यथा वायोः सस्पन्दोऽन्तर्विशत्यलम् ।
अनन्यात्मा तथैवायं स्वप्नार्थः संविदो मलम् ॥ ४५ ॥

aspandasya yathā vāyoḥ saspando'ntarviśatyalam ,
ananyātmā tathaivāyaṃ svapnārthaḥ saṃvido malam 45

45. aspandasya yathā vāyoḥ saspandaḥ antar viśati alam
ananyātmā tathā eva ayam svapnārthaḥ saṃvidaḥ malam

45. yathā aspandasya vāyoḥ antar saspandaḥ alam viśati,
tathā eva ayam svapnārthaḥ ananyātmā saṃvidaḥ malam

45. Just as a moving aspect (saspanda) fully enters within the motionless wind (vāyu), similarly, this dream-object (svapnārtha) is non-different (ananyātmā) from consciousness (saṃvid) and is merely a modification of it.

Words meanings summery:

• अस्पन्दस्य (aspandasya) - of the motionless (wind) (of the motionless, of the unmoving)

• यथा (yathā) - just as (as, just as, like)

• वायोः (vāyoḥ) - of the wind (vāyu) (of the wind, of Vāyu)

• सस्पन्दः (saspandaḥ) - a moving (aspect) (moving, vibrating, agitated)

• अन्तर् (antar) - within (within, inside, between)

• विशति (viśati) - enters

• अलम् (alam) - completely, sufficiently (enough, sufficient, capable, indeed, completely)

• अनन्यात्मा (ananyātmā) - non-different (from consciousness) (non-different, identical)

• तथा (tathā) - similarly (so, thus, similarly)

• एव (eva) - indeed, only (indeed, only, just)

• अयम् (ayam) - this (referring to the dream-object) (this (masculine nominative singular))

• स्वप्नार्थः (svapnārthaḥ) - dream-object (dream-object, meaning of a dream, dream content)

• संविदः (saṁvidaḥ) - of consciousness (saṃvid) (of consciousness, of knowledge)

• मलम् (malam) - a modification or manifestation (of consciousness) (impurity, dirt, stain, fault, defect, modification)

Words meanings and morphology

अस्पन्दस्य (aspandasya) - of the motionless (wind) (of the motionless, of the unmoving)

(adjective)

Genitive, masculine, singular of aspanda

aspanda - motionless, unmoving, calm

compound of a (negation) + spanda (movement)

Compound type : nañ-bahuvrihi (a+spanda)

• a – not, non-, un-
  indeclinable
  negation prefix
• spanda – movement, vibration, pulsation
  noun (masculine)
  Root: spand (class 1)

Note: Agrees with vāyoḥ.

यथा (yathā) - just as (as, just as, like)

(indeclinable)

वायोः (vāyoḥ) - of the wind (vāyu) (of the wind, of Vāyu)

(noun)

Genitive, masculine, singular of vāyu

vāyu - wind, air, breath, god of wind

Root: vā (class 2)

Note: Can also be ablative singular.

सस्पन्दः (saspandaḥ) - a moving (aspect) (moving, vibrating, agitated)

(adjective)

Nominative, masculine, singular of saspanda

saspanda - moving, vibrating, pulsating, agitated

compound of sa (with) + spanda (movement)

Compound type : sah-bahuvrihi (sa+spanda)

• sa – with, together with
  indeclinable
  prefix denoting association
• spanda – movement, vibration, pulsation
  noun (masculine)
  Root: spand (class 1)

Note: Agrees with an implied noun like 'bhāga' (part) or used substantively as 'one that moves'.

अन्तर् (antar) - within (within, inside, between)

(indeclinable)

Note: Acts as an adverb.

विशति (viśati) - enters

(verb)

3rd person , singular, active, present (laṭ) of viś

present active

root viś, 6th class, Parasmaipada, present tense, 3rd person singular

Root: viś (class 6)

अलम् (alam) - completely, sufficiently (enough, sufficient, capable, indeed, completely)

(indeclinable)

Note: Used as an adverb emphasizing completeness.

अनन्यात्मा (ananyātmā) - non-different (from consciousness) (non-different, identical)

(adjective)

Nominative, masculine, singular of ananyātman

ananyātman - having no other self, identical, non-different

compound of an-anya (not other) + ātman (self)

Compound type : nañ-tatpurusha (an+anya+ātman)

• an – not, non-, un-
  indeclinable
  negation prefix
• anya – other, different
  pronoun (masculine)
• ātman – self, soul, spirit, essential nature
  noun (masculine)
  Root: at (class 1)

Note: Agrees with 'svapnārthaḥ'.

तथा (tathā) - similarly (so, thus, similarly)

(indeclinable)

एव (eva) - indeed, only (indeed, only, just)

(indeclinable)

अयम् (ayam) - this (referring to the dream-object) (this (masculine nominative singular))

(pronoun)

Nominative, masculine, singular of idam

idam - this, this one

nominative singular masculine of idam

Note: Agrees with svapnārthaḥ.

स्वप्नार्थः (svapnārthaḥ) - dream-object (dream-object, meaning of a dream, dream content)

(noun)

Nominative, masculine, singular of svapnārtha

svapnārtha - dream-object, dream content, meaning of a dream

Compound type : tatpurusha (svapna+artha)

• svapna – sleep, dream
  noun (masculine)
  Root: svap (class 2)
• artha – object, meaning, purpose
  noun (masculine)

संविदः (saṁvidaḥ) - of consciousness (saṃvid) (of consciousness, of knowledge)

(noun)

Genitive, feminine, singular of saṃvid

saṁvid - consciousness, knowledge, intelligence, understanding

Prefix: sam

Root: vid (class 6)

मलम् (malam) - a modification or manifestation (of consciousness) (impurity, dirt, stain, fault, defect, modification)

(noun)

Nominative, neuter, singular of mala

mala - dirt, impurity, stain, defect, secretion; often used to denote a covering or phenomenal modification in philosophical contexts

Note: This word can also be accusative singular. Here, it functions as a predicate nominative, indicating what the dream-object is.