योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-101, verse-30

संविदाकाशमात्रात्मा पिब भुंक्ष्वास्व निर्ममः ।
आकाशकोशकान्तस्य कुत इच्छोदयस्तव ॥ ३० ॥

saṃvidākāśamātrātmā piba bhuṃkṣvāsva nirmamaḥ ,
ākāśakośakāntasya kuta icchodayastava 30

30. saṃvidākāśamātrātman piba bhuṅkṣva āsva nirmamaḥ
ākāśakośakāntasya kutaḥ icchā udayaḥ tava

30. saṃvidākāśamātrātman nirmamaḥ piba bhuṅkṣva
āsva tava ākāśakośakāntasya kutaḥ icchā udayaḥ

30. O you whose essential nature is merely the space of pure consciousness (saṃvid-ākāśa)! Drink, enjoy, and remain free from possessiveness. For you, whose innermost sheath is the vastness of space, from where could any desire (icchā) arise?

Words meanings summery:

• संविदाकाशमात्रात्मन् (saṁvidākāśamātrātman) - O you whose essential nature is merely the space of consciousness

• पिब (piba) - drink, imbibe

• भुङ्क्ष्व (bhuṅkṣva) - enjoy, experience, eat

• आस्व (āsva) - be, stay, sit

• निर्ममः (nirmamaḥ) - without possessiveness, unattached

• आकाशकोशकान्तस्य (ākāśakośakāntasya) - of him whose inner sheath is space

• कुतः (kutaḥ) - whence, from where, why

• इच्छा (icchā) - desire, wish

• उदयः (udayaḥ) - rising, appearance, origination

• तव (tava) - your, of you

Words meanings and morphology

संविदाकाशमात्रात्मन् (saṁvidākāśamātrātman) - O you whose essential nature is merely the space of consciousness

(noun)

Vocative, masculine, singular of saṃvidākāśamātrātman

saṁvidākāśamātrātman - one whose self/nature is merely the space of consciousness

Compound type : bahuvrīhi (saṃvid+ākāśa+mātra+ātman)

• saṃvid – consciousness, knowledge
  noun (feminine)
  Prefix: sam
  Root: vid (class 2)
• ākāśa – space, ether, sky
  noun (masculine/neuter)
• mātra – only, mere, just
  adjective/indeclinable (masculine/neuter)
• ātman – self, soul, essential nature
  noun (masculine)

पिब (piba) - drink, imbibe

(verb)

2nd person , singular, active, imperative (loṭ) of pā

Root: pā (class 1)

भुङ्क्ष्व (bhuṅkṣva) - enjoy, experience, eat

(verb)

2nd person , singular, middle, imperative (loṭ) of bhuj

Root: bhuj (class 7)

आस्व (āsva) - be, stay, sit

(verb)

2nd person , singular, middle, imperative (loṭ) of ās

Root: ās (class 2)

निर्ममः (nirmamaḥ) - without possessiveness, unattached

(adjective)

Nominative, masculine, singular of nirmama

nirmama - free from selfishness, without egoism, without possessiveness

Compound type : bahuvrīhi (nir+mama)

• nir – without, out of, away from
  prefix/indeclinable
• mama – mine, my (genitive of 'asmat')
  pronoun

आकाशकोशकान्तस्य (ākāśakośakāntasya) - of him whose inner sheath is space

(adjective)

Genitive, masculine, singular of ākāśakośakānta

ākāśakośakānta - one whose inner sheath is space

Compound type : bahuvrīhi (ākāśa+kośa+kānta)

• ākāśa – space, ether, sky
  noun (masculine/neuter)
• kośa – sheath, treasury, inner layer, capsule
  noun (masculine)
• kānta – beloved, desired, lovely; also, an inner chamber, contained within
  adjective/noun (masculine/neuter)
  Past Passive Participle
  Derived from root kam (to desire)
  Root: kam (class 1)

कुतः (kutaḥ) - whence, from where, why

(indeclinable)

इच्छा (icchā) - desire, wish

(noun)

Nominative, feminine, singular of icchā

icchā - desire, wish, inclination

Root: iṣ (class 6)

उदयः (udayaḥ) - rising, appearance, origination

(noun)

Nominative, masculine, singular of udaya

udaya - rising, ascending, emergence, origin, prosperity

Derived from ud-i (to rise)

Prefix: ud

Root: i (class 2)

तव (tava) - your, of you

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you (pronoun)