योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-70, verse-12

तन्तुर्बिसादिवोड्डीना बाह्यसंचारकौतुकात् ।
ब्रह्मनाडिरिवोद्युक्ता बहीरन्ध्रं सुसुन्दरी ॥ १२ ॥

tanturbisādivoḍḍīnā bāhyasaṃcārakautukāt ,
brahmanāḍirivodyuktā bahīrandhraṃ susundarī 12

12. tantuḥ bisāt iva uḍḍīnā bāhya-saṃcāra-kautukāt
brahma-nāḍiḥ iva udyuktā bahiḥ-randhram su-sundarī

12. su-sundarī tantuḥ bisāt iva bāhya-saṃcāra-kautukāt
uḍḍīnā brahma-nāḍiḥ iva bahiḥ-randhram udyuktā

12. Very beautiful, it emerges like a fiber from a lotus stalk, out of curiosity for external movement. Like a `brahma-nāḍī` (subtle channel), it is directed towards the outer aperture.

Words meanings summery:

• तन्तुः (tantuḥ) - a subtle thread or filament (a thread, fiber, string)

• बिसात् (bisāt) - from a lotus fiber/stalk

• इव (iva) - like, as if

• उड्डीना (uḍḍīnā) - emerged (flown up, emerged, risen)

• बाह्य-संचार-कौतुकात् (bāhya-saṁcāra-kautukāt) - from curiosity for external movement/wandering

• ब्रह्म-नाडिः (brahma-nāḍiḥ) - a `brahma-nāḍī` (subtle channel) (a subtle channel for vital energy or consciousness)

• इव (iva) - like, as if

• उद्युक्ता (udyuktā) - directed, aiming towards (engaged, prepared, active, aspiring, directed)

• बहिः-रन्ध्रम् (bahiḥ-randhram) - outer opening, aperture

• सु-सुन्दरी (su-sundarī) - very beautiful, exceedingly lovely

Words meanings and morphology

तन्तुः (tantuḥ) - a subtle thread or filament (a thread, fiber, string)

(noun)

Nominative, masculine, singular of tantu

tantu - a thread, fiber, string, filament, connection

Root: tan (class 8)

बिसात् (bisāt) - from a lotus fiber/stalk

(noun)

Ablative, neuter, singular of bisa

bisa - a lotus fiber, lotus stalk

इव (iva) - like, as if

(indeclinable)

उड्डीना (uḍḍīnā) - emerged (flown up, emerged, risen)

(adjective)

Nominative, feminine, singular of uḍḍīna

uḍḍīna - flown up, emerged, risen

Past Passive Participle

Derived from root √ḍī (to fly) with prefix ud-

Prefix: ud

Root: ḍī (class 4)

बाह्य-संचार-कौतुकात् (bāhya-saṁcāra-kautukāt) - from curiosity for external movement/wandering

(noun)

Ablative, neuter, singular of bāhya-saṃcāra-kautuka

bāhya-saṁcāra-kautuka - curiosity for external movement

Compound type : tatpurusha (bāhya+saṃcāra+kautuka)

• bāhya – external, outer
  adjective
• saṃcāra – movement, wandering, circulation
  noun (masculine)
  Prefix: sam
  Root: car (class 1)
• kautuka – curiosity, eagerness, interest
  noun (neuter)

ब्रह्म-नाडिः (brahma-nāḍiḥ) - a `brahma-nāḍī` (subtle channel) (a subtle channel for vital energy or consciousness)

(noun)

Nominative, feminine, singular of brahma-nāḍi

brahma-nāḍi - a subtle channel, especially in yogic physiology, associated with brahman

Compound type : tatpurusha (brahman+nāḍi)

• brahman – the Absolute, the ultimate reality, sacred word
  noun (neuter)
  Root: bṛh (class 1)
• nāḍi – a tubular organ, pulse, vein, nerve, subtle channel
  noun (feminine)
  Root: nal (class 1)

इव (iva) - like, as if

(indeclinable)

उद्युक्ता (udyuktā) - directed, aiming towards (engaged, prepared, active, aspiring, directed)

(adjective)

Nominative, feminine, singular of udyukta

udyukta - engaged, prepared, active, ready, directed

Past Passive Participle

Derived from root √yuj (to join, connect) with prefix ud-

Prefix: ud

Root: yuj (class 7)

बहिः-रन्ध्रम् (bahiḥ-randhram) - outer opening, aperture

(noun)

Accusative, neuter, singular of bahiḥ-randhra

bahiḥ-randhra - outer opening/aperture

Compound type : tatpurusha (bahiḥ+randhra)

• bahiḥ – outside, external
  indeclinable
• randhra – hole, opening, aperture, defect
  noun (neuter)
  Root: randh

Note: Can imply direction, 'towards the outer opening'.

सु-सुन्दरी (su-sundarī) - very beautiful, exceedingly lovely

(adjective)

Nominative, feminine, singular of su-sundarī

su-sundarī - very beautiful, exceedingly lovely

Compound type : karmadhāraya (su+sundarī)

• su – good, well, very, exceedingly
  indeclinable
  prefix
• sundarī – beautiful, lovely woman
  adjective (feminine)
  feminine form of sundara