योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-13, verse-18

कमप्यर्कांशुकोशस्थं त्रसरेणुं विवेश सः ।
संविद्रूपतया पद्मकोशं मधुकरो यथा ॥ १८ ॥

kamapyarkāṃśukośasthaṃ trasareṇuṃ viveśa saḥ ,
saṃvidrūpatayā padmakośaṃ madhukaro yathā 18

18. kam api arkāṁśukośastham trasareṇum viveśa
saḥ saṃvidrūpatayā padmakośam madhukaraḥ yathā

18. saḥ saṃvidrūpatayā kam api arkāṁśukośastham
trasareṇum viveśa yathā madhukaraḥ padmakośam

18. He entered a certain dust particle (trasareṇu) located within the sheath of a sunbeam, just as a bee, through its conscious form, enters a lotus bud.

Words meanings summery:

• कम् (kam) - whom, what, some

• अपि (api) - forms an indefinite pronoun 'some' with 'kam' (even, also, too, (forms indefinite pronoun))

• अर्कांशुकोशस्थम् (arkāṁśukośastham) - located in the sheath of a sunbeam

• त्रसरेणुम् (trasareṇum) - a dust particle, a motes

• विवेश (viveśa) - he entered, he penetrated

• सः (saḥ) - he

• संविद्रूपतया (saṁvidrūpatayā) - acting or appearing as pure consciousness (saṃvid) (by the nature of consciousness, in the form of pure awareness (saṃvid))

• पद्मकोशम् (padmakośam) - a lotus bud/sheath

• मधुकरः (madhukaraḥ) - a bee, honey-maker

• यथा (yathā) - as, just as, in which way

Words meanings and morphology

कम् (kam) - whom, what, some

(pronoun)

Accusative, masculine, singular of kim

kim - what, which, who

Masculine singular accusative form of the interrogative pronoun 'kim'. Forms an indefinite pronoun 'kam api' (some, any) when combined with 'api'.

अपि (api) - forms an indefinite pronoun 'some' with 'kam' (even, also, too, (forms indefinite pronoun))

(indeclinable)

Particle. When appended to interrogative pronouns, it forms an indefinite pronoun.

अर्कांशुकोशस्थम् (arkāṁśukośastham) - located in the sheath of a sunbeam

(adjective)

Accusative, masculine, singular of arkāṁśukośastha

arkāṁśukośastha - situated in the sheath/envelope of a sunbeam

Compound formed from arka (sun), aṃśu (ray), kośa (sheath), and stha (standing, from root sthā).

Compound type : bahutatpuruṣa (arka+aṃśu+kośa+stha)

• arka – sun, ray
  noun (masculine)
• aṃśu – ray, beam of light
  noun (masculine)
• kośa – sheath, container, bud, envelope
  noun (masculine)
• stha – standing, situated, dwelling
  adjective
  From root sthā (to stand) with suffix -a.
  Root: sthā (class 1)

Note: Qualifies 'trasareṇum'.

त्रसरेणुम् (trasareṇum) - a dust particle, a motes

(noun)

Accusative, masculine, singular of trasareṇu

trasareṇu - a visible particle of dust in a sunbeam, a motes (regarded as the smallest division of matter)

Compound of trasa (moving) and reṇu (dust).

Compound type : karmadhāraya (trasa+reṇu)

• trasa – trembling, moving
  adjective
  From root tras (to tremble).
  Root: tras (class 1)
• reṇu – dust, particle, atom
  noun (masculine)

विवेश (viveśa) - he entered, he penetrated

(verb)

3rd person , singular, active, Perfect (liṭ) of viś

Perfect, Active Voice

3rd person singular Perfect form of the root viś (class 6), reduplicated.

Root: viś (class 6)

सः (saḥ) - he

(pronoun)

Nominative, masculine, singular of tad

tad - that, he

Masculine singular nominative form of the demonstrative pronoun 'tad'.

Note: Subject of 'viveśa'.

संविद्रूपतया (saṁvidrūpatayā) - acting or appearing as pure consciousness (saṃvid) (by the nature of consciousness, in the form of pure awareness (saṃvid))

(noun)

Instrumental, feminine, singular of saṃvidrūpatā

saṁvidrūpatā - the state of having the form of consciousness, the nature of awareness (saṃvid)

Compound of saṃvid (consciousness) + rūpa (form) + the abstract noun suffix -tā.

Compound type : tatpuruṣa (saṃvid+rūpa+tā)

• saṃvid – consciousness, knowledge, intelligence
  noun (feminine)
  From root vid with prefix saṃ-.
  Prefix: saṃ
  Root: vid (class 2)
• rūpa – form, shape, nature
  noun (neuter)
• tā – suffix denoting state, condition, quality
  suffix (feminine)
  Abstract noun suffix.

Note: Indicates the manner or means by which the action is performed.

पद्मकोशम् (padmakośam) - a lotus bud/sheath

(noun)

Accusative, masculine, singular of padmakośa

padmakośa - lotus bud, inner part of a lotus

Compound of padma (lotus) and kośa (sheath/bud).

Compound type : ṣaṣṭhī-tatpuruṣa (padma+kośa)

• padma – lotus
  noun (neuter)
• kośa – sheath, bud, container
  noun (masculine)

मधुकरः (madhukaraḥ) - a bee, honey-maker

(noun)

Nominative, masculine, singular of madhukara

madhukara - bee, honey-maker

Compound of madhu (honey) and kara (maker, doer).

Compound type : tatpuruṣa (madhu+kara)

• madhu – honey, sweet
  noun (neuter)
• kara – maker, doer
  noun (masculine)
  From root kṛ (to make, do) with suffix -a.
  Root: kṛ (class 8)

Note: Subject of the simile.

यथा (yathā) - as, just as, in which way

(indeclinable)

Adverb of manner.

Note: Introduces the comparison.