योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-87, verse-51

पार्श्वसुप्तजनस्वप्नस्तच्चित्तावेशनं विना ।
यथा न किंचित्तच्चित्तावेशनादनुभूयते ॥ ५१ ॥

pārśvasuptajanasvapnastaccittāveśanaṃ vinā ,
yathā na kiṃcittaccittāveśanādanubhūyate 51

51. पार्श्व-सुप्त-जन-स्वप्नः तत्-चित्त-आवेशनम् विना
यथा न किञ्चित् तत्-चित्त-आवेशनात् अनुभूयते

51. यथा पार्श्व-सुप्त-जन-स्वप्नः तत्-चित्त-आवेशनम् विना न किञ्चित् अनुभूयते।

51. Just as the dream of a person sleeping nearby is not experienced unless one's own mind is absorbed into that dream.

Words meanings summery:

• पार्श्व-सुप्त-जन-स्वप्नः (पार्श्व-सुप्त-जन-स्वप्नः) - the dream of a person sleeping nearby

• तत्-चित्त-आवेशनम् (तत्-चित्त-आवेशनम्) - absorption of that mind (i.e., one's own mind into it)

• विना (विना) - without, except

• यथा (यथा) - just as, like

• न (न) - not, no

• किञ्चित् (किञ्चित्) - anything, something, a little

• तत्-चित्त-आवेशनात् (तत्-चित्त-आवेशनात्) - from the absorption of that mind, due to that mental absorption

• अनुभूयते (अनुभूयते) - is experienced, is felt

Words meanings and morphology

पार्श्व-सुप्त-जन-स्वप्नः (पार्श्व-सुप्त-जन-स्वप्नः) - the dream of a person sleeping nearby

(noun)

Nominative, masculine, singular of pārśvasuptajanasvapna

pārśvasuptajanasvapna - the dream of a person sleeping at one's side

Compound type : ṣaṣṭhī-tatpuruṣa (pārśvasupta+jana+svapna)

• pārśva – side, flank, proximity
  noun (neuter)
• supta – asleep, sleeping
  adjective (masculine)
  Past Passive Participle
  From root svap 'to sleep'
  Root: svap (class 2)
• jana – person, man, creature, folk
  noun (masculine)
  Root: jan (class 4)
• svapna – dream, sleep
  noun (masculine)
  Root: svap (class 2)

तत्-चित्त-आवेशनम् (तत्-चित्त-आवेशनम्) - absorption of that mind (i.e., one's own mind into it)

(noun)

Accusative, neuter, singular of taccittāveśana

taccittāveśana - the absorption or entry of that mind (into something)

Compound type : ṣaṣṭhī-tatpuruṣa (tad+citta+āveśana)

• tad – that, it
  pronoun (neuter)
• citta – mind, consciousness, thought
  noun (neuter)
  Past Passive Participle of cit, used as noun
  Root: cit (class 1)
• āveśana – entering, absorption, dwelling, possession
  noun (neuter)
  from ā-viś
  Prefix: ā
  Root: viś (class 6)

Note: Used with 'vinā' which governs accusative or instrumental

विना (विना) - without, except

(indeclinable)

यथा (यथा) - just as, like

(indeclinable)

न (न) - not, no

(indeclinable)

किञ्चित् (किञ्चित्) - anything, something, a little

(pronoun)

Nominative, neuter, singular of kiñcid

kiñcid - something, anything, a little, somewhat

Note: Acts as nominative in relation to 'anubhūyate'

तत्-चित्त-आवेशनात् (तत्-चित्त-आवेशनात्) - from the absorption of that mind, due to that mental absorption

(noun)

Ablative, neuter, singular of taccittāveśana

taccittāveśana - the absorption or entry of that mind (into something)

Compound type : ṣaṣṭhī-tatpuruṣa (tad+citta+āveśana)

• tad – that, it
  pronoun (neuter)
• citta – mind, consciousness, thought
  noun (neuter)
  Past Passive Participle of cit, used as noun
  Root: cit (class 1)
• āveśana – entering, absorption, dwelling, possession
  noun (neuter)
  from ā-viś
  Prefix: ā
  Root: viś (class 6)

अनुभूयते (अनुभूयते) - is experienced, is felt

(verb)

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

Prefix: anu

Root: bhū (class 1)