योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-98, verse-16

आश्रयेतैकविश्रान्त्यै श्रान्तः संसारवर्त्मना ।
यस्मादत्यन्तविषमः संसारोरगसागरः ॥ १६ ॥

āśrayetaikaviśrāntyai śrāntaḥ saṃsāravartmanā ,
yasmādatyantaviṣamaḥ saṃsāroragasāgaraḥ 16

16. āśrayeta ekaviśrāntyai śrāntaḥ saṃsāravarthmanā
yasmāt atyantaviṣamaḥ saṃsāroragasāgaraḥ

16. saṃsāravarthmanā śrāntaḥ ekaviśrāntyai āśrayeta
yasmāt saṃsāroragasāgaraḥ atyantaviṣamaḥ

16. A person weary from the path of saṃsāra (the cycle of birth and death) should take refuge for ultimate repose, because this ocean of saṃsāra, which is like a serpent, is exceedingly formidable.

Words meanings summery:

• आश्रयेत (āśrayeta) - one should take refuge, one should resort to

• एकविश्रान्त्यै (ekaviśrāntyai) - for singular rest, for ultimate repose

• श्रान्तः (śrāntaḥ) - weary, exhausted, tired

• संसारवर्थ्मना (saṁsāravarthmanā) - by the path of saṃsāra (the cycle of birth and death)

• यस्मात् (yasmāt) - because, since, from which

• अत्यन्तविषमः (atyantaviṣamaḥ) - extremely difficult, very formidable

• संसारोरगसागरः (saṁsāroragasāgaraḥ) - the ocean of saṃsāra (the cycle of birth and death) which is like a serpent, the serpent-ocean of saṃsāra

Words meanings and morphology

आश्रयेत (āśrayeta) - one should take refuge, one should resort to

(verb)

3rd person , singular, middle, optative (vidhi-liṅ) of āśrī

Optative

From root śrī (to resort to, serve) with prefix ā.

Prefix: ā

Root: śrī (class 1)

एकविश्रान्त्यै (ekaviśrāntyai) - for singular rest, for ultimate repose

(noun)

Dative, feminine, singular of ekaviśrānti

ekaviśrānti - singular rest, sole repose, ultimate rest

Compound type : karmadhāraya (eka+viśrānti)

• eka – one, single, unique, sole
  adjective
• viśrānti – rest, repose, cessation, tranquility
  noun (feminine)
  From vi-śram (to rest) + ktin.
  Prefix: vi
  Root: śram (class 1)

Note: Expresses purpose.

श्रान्तः (śrāntaḥ) - weary, exhausted, tired

(adjective)

Nominative, masculine, singular of śrānta

śrānta - weary, exhausted, tired, ceased

Past Passive Participle

From root śram (to be weary, toil) + kta suffix.

Root: śram (class 1)

Note: Qualifies the implied subject of āśrayeta.

संसारवर्थ्मना (saṁsāravarthmanā) - by the path of saṃsāra (the cycle of birth and death)

(noun)

Instrumental, neuter, singular of saṃsāravarthman

saṁsāravarthman - path of saṃsāra (the cycle of birth and death)

Compound type : tatpuruṣa (saṃsāra+varthman)

• saṃsāra – wandering through, cycle of birth and death, transmigration, world
  noun (masculine)
  From sam-sṛ (to go through, move about) + ghañ.
  Prefix: sam
  Root: sṛ (class 1)
• varthman – path, road, way
  noun (neuter)
  From root vṛt (to turn, roll).
  Root: vṛt (class 1)

Note: Indicates the cause or means of weariness.

यस्मात् (yasmāt) - because, since, from which

(pronoun)

Ablative, singular of yad

yad - which, what, that

Note: Used adverbially to mean 'because'.

अत्यन्तविषमः (atyantaviṣamaḥ) - extremely difficult, very formidable

(adjective)

Nominative, masculine, singular of atyantaviṣama

atyantaviṣama - extremely difficult, very formidable, very uneven, very adverse

Compound type : avyayībhāva / karmadhāraya (atyanta+viṣama)

• atyanta – excessive, extreme, very much
  adjective/indeclinable
  From ati-anta.
  Prefix: ati
  Root: ant
• viṣama – uneven, difficult, formidable, adverse, dangerous
  adjective (masculine)
  From vi-sama (not even).
  Prefix: vi
  Root: sam

Note: Qualifies sāgaraḥ.

संसारोरगसागरः (saṁsāroragasāgaraḥ) - the ocean of saṃsāra (the cycle of birth and death) which is like a serpent, the serpent-ocean of saṃsāra

(noun)

Nominative, masculine, singular of saṃsāroragasāgara

saṁsāroragasāgara - the ocean of saṃsāra (the cycle of birth and death) which is like a serpent, the serpent-ocean of saṃsāra

Compound.

Compound type : karmadhāraya / tatpuruṣa (saṃsāra+uraga+sāgara)

• saṃsāra – wandering through, cycle of birth and death, transmigration, world
  noun (masculine)
  From sam-sṛ (to go through, move about) + ghañ.
  Prefix: sam
  Root: sṛ (class 1)
• uraga – snake, serpent (lit. moving on the chest)
  noun (masculine)
  From uras (chest) + gam (to go) + ḍa.
  Root: gam (class 1)
• sāgara – ocean, sea
  noun (masculine)
  From sa-agara (with poison, or with mountains - referring to the mythical mountains at the edge of the world).
  Prefix: sa

Note: The compound signifies a dangerous and vast entity.