योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-8, verse-13

भूतबीजपरापूर्णास्तमोरिपुसघुंघुमाः ।
तमःप्रकाशचित्राख्या लोकान्तरसमुद्गकाः ॥ १३ ॥

bhūtabījaparāpūrṇāstamoripusaghuṃghumāḥ ,
tamaḥprakāśacitrākhyā lokāntarasamudgakāḥ 13

13. bhūtabījaparāpūrṇāḥ tamoripusaghuṃghumāḥ
tamaḥprakāśacitrākhyāḥ lokāntarasamudgakāḥ

13. bhūtabījaparāpūrṇāḥ tamoripusaghuṃghumāḥ
tamaḥprakāśacitrākhyāḥ lokāntarasamudgakāḥ

13. They are filled with the supreme essence of beings, humming with the light that dispels darkness (tamas). They are known by their variegated appearance of darkness and light, and they serve as receptacles for other worlds.

Words meanings summery:

• भूतबीजपरापूर्णाः (bhūtabījaparāpūrṇāḥ) - filled with the supreme essence of beings; full of the highest origin of elements.

• तमोरिपुसघुंघुमाः (tamoripusaghuṁghumāḥ) - humming with the enemies of darkness (i.e., light); having the sound of those that dispel gloom.

• तमःप्रकाशचित्राख्याः (tamaḥprakāśacitrākhyāḥ) - known by their variegated appearance of darkness and light; having the name of diverse light and darkness.

• लोकान्तरसमुद्गकाः (lokāntarasamudgakāḥ) - caskets/receptacles for other worlds; small containers for other realms.

Words meanings and morphology

भूतबीजपरापूर्णाः (bhūtabījaparāpūrṇāḥ) - filled with the supreme essence of beings; full of the highest origin of elements.

(adjective)

Nominative, masculine, plural of bhūtabījaparāpūrṇa

bhūtabījaparāpūrṇa - full of the supreme seed/origin of existence

Compound type : Bahuvrihi (bhūta+bīja+parā+āpūrṇa)

• bhūta – being, element, creature
  adjective
  Past Passive Participle
  From root bhū (to be)
  Root: bhū (class 1)
• bīja – seed, origin, cause
  noun (neuter)
• parā – supreme, highest, excellent
  adjective (feminine)
• āpūrṇa – full, complete, filled
  adjective
  Past Passive Participle
  From root pṛ with upasarga ā-
  Prefix: ā
  Root: pṛ (class 9)

तमोरिपुसघुंघुमाः (tamoripusaghuṁghumāḥ) - humming with the enemies of darkness (i.e., light); having the sound of those that dispel gloom.

(adjective)

Nominative, masculine, plural of tamoripusaghuṃghuma

tamoripusaghuṁghuma - humming with the enemies of darkness

Compound type : Bahuvrihi (tamas+ripu+sa+ghuṃghuma)

• tamas – darkness, ignorance
  noun (neuter)
• ripu – enemy
  noun (masculine)
• sa – with, accompanied by
  indeclinable
  Prefix indicating 'with' or 'together'
• ghuṃghuma – humming sound, murmur
  noun (masculine)

तमःप्रकाशचित्राख्याः (tamaḥprakāśacitrākhyāḥ) - known by their variegated appearance of darkness and light; having the name of diverse light and darkness.

(adjective)

Nominative, masculine, plural of tamaḥprakāśacitrākhyā

tamaḥprakāśacitrākhyā - having the designation/appearance of varied darkness and light

Compound type : Bahuvrihi (tamas+prakāśa+citra+ākhyā)

• tamas – darkness
  noun (neuter)
• prakāśa – light, manifestation, splendor
  noun (masculine)
• citra – variegated, diverse, wonderful, painted
  adjective
• ākhyā – name, designation, appearance
  noun (feminine)

लोकान्तरसमुद्गकाः (lokāntarasamudgakāḥ) - caskets/receptacles for other worlds; small containers for other realms.

(noun)

Nominative, masculine, plural of lokāntarasamudgaka

lokāntarasamudgaka - receptacle/casket for other worlds

Compound type : Tatpurusha (loka+antara+samudgaka)

• loka – world, realm, people
  noun (masculine)
• antara – other, different, interior, space between
  adjective
• samudgaka – casket, box, small container
  noun (masculine)