योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-114, verse-3

तावत्संसारभृगुषु स्वात्मना सह देहिनम् ।
आन्दोलयति नीरन्ध्रदुःखकण्टकशालिषु ॥ ३ ॥

tāvatsaṃsārabhṛguṣu svātmanā saha dehinam ,
āndolayati nīrandhraduḥkhakaṇṭakaśāliṣu 3

3. tāvat saṃsārabhṛguṣu svātmanā saha dehinam
āndolayati nīrandhraduḥkhakaṇṭakaśāliṣu

3. (avidyā) tāvat nīrandhraduḥkhakaṇṭakaśāliṣu
saṃsārabhṛguṣu svātmanā saha dehinam āndolayati

3. As long as this ignorance persists, it tosses the embodied being, along with its own individual self, upon the precipices of transmigration (saṃsāra), which are covered with incessant thorns of suffering.

Words meanings summery:

• तावत् (tāvat) - as long as (ignorance persists) (so long, until then, so much)

• संसारभृगुषु (saṁsārabhṛguṣu) - amidst the precipices of transmigration (saṃsāra) (on the cliffs/ridges of saṃsāra)

• स्वात्मना (svātmanā) - along with its own individual self (with one's own self/ego)

• सह (saha) - along with (with, together with)

• देहिनम् (dehinam) - the embodied being (the embodied being, the living being)

• आन्दोलयति (āndolayati) - tosses (makes swing, tosses, agitates, makes oscillate)

• नीरन्ध्रदुःखकण्टकशालिषु (nīrandhraduḥkhakaṇṭakaśāliṣu) - which are covered with incessant thorns of suffering (in which there are dense/uninterrupted thorns of suffering)

Words meanings and morphology

तावत् (tāvat) - as long as (ignorance persists) (so long, until then, so much)

(indeclinable)

Adverb.

संसारभृगुषु (saṁsārabhṛguṣu) - amidst the precipices of transmigration (saṃsāra) (on the cliffs/ridges of saṃsāra)

(noun)

Locative, masculine, plural of saṃsārabhṛgu

saṁsārabhṛgu - a cliff or ridge of transmigration

Locative plural of a masculine compound noun.

Compound type : Tatpuruṣa (saṃsāra+bhṛgu)

• saṃsāra – transmigration, cycle of birth and death, worldly existence
  noun (masculine)
  From sam + sṛ
  Prefix: sam
  Root: sṛ (class 1)
• bhṛgu – cliff, precipice, mountain ridge
  noun (masculine)

Note: The location where the embodied being is tossed.

स्वात्मना (svātmanā) - along with its own individual self (with one's own self/ego)

(noun)

Instrumental, masculine, singular of svātman

svātman - one's own self, individual soul, ego

Instrumental singular of svātman.

Compound type : Tatpuruṣa (sva+ātman)

• sva – own, one's own
  pronoun
• ātman – self, soul, individual soul
  noun (masculine)
  Root: an (class 2)

Note: Used with 'saha'.

सह (saha) - along with (with, together with)

(indeclinable)

Preposition/adverb governing instrumental.

देहिनम् (dehinam) - the embodied being (the embodied being, the living being)

(noun)

Accusative, masculine, singular of dehin

dehin - embodied, living being, individual soul

Accusative singular of dehin (masculine n-stem).

Root: deh

आन्दोलयति (āndolayati) - tosses (makes swing, tosses, agitates, makes oscillate)

(verb)

3rd person , singular, active, present (laṭ) of āndolaya

Causative present active

From ā + dol + ṇic.

Prefix: ā

Root: dul (class 1)

नीरन्ध्रदुःखकण्टकशालिषु (nīrandhraduḥkhakaṇṭakaśāliṣu) - which are covered with incessant thorns of suffering (in which there are dense/uninterrupted thorns of suffering)

(adjective)

Locative, masculine, plural of nīrandhraduḥkhakaṇṭakaśālin

nīrandhraduḥkhakaṇṭakaśālin - abounding in dense thorns of suffering

Locative plural of a compound adjective ending in -śālin.

Compound type : Bahuvrihi (nīrandhra+duḥkha+kaṇṭaka+śālin)

• nīrandhra – without interstices, dense, unbroken, incessant
  adjective
  From nis (without) + randhra (opening, gap)
  Prefix: nis
• duḥkha – suffering, pain, misery
  noun (neuter)
• kaṇṭaka – thorn, prickle, obstacle, source of annoyance
  noun (masculine)
• śālin – possessing, endowed with, covered with
  adjective
  Suffix -śālin implies 'possessing'

Note: Qualifies saṃsārabhṛguṣu.