योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-17, verse-4

धीरस्थिरमहाकारो विश्रान्ति गतमन्दरः ।
परिपूर्णमनाः शुद्धः क्षीरार्णव इवागतः ॥ ४ ॥

dhīrasthiramahākāro viśrānti gatamandaraḥ ,
paripūrṇamanāḥ śuddhaḥ kṣīrārṇava ivāgataḥ 4

4. dhīrasthiramahākāraḥ viśrāntim gatamandaraḥ
paripūrṇamanāḥ śuddhaḥ kṣīrārṇavaḥ iva āgataḥ

4. dhīrasthiramahākāraḥ viśrāntim gatamandaraḥ
paripūrṇamanāḥ śuddhaḥ kṣīrārṇavaḥ iva āgataḥ

4. He whose vast form is profound and steadfast, who has surpassed the Mandara mountain in tranquility, whose mind is completely fulfilled and pure, has come forth like the ocean of milk.

Words meanings summery:

• धीरस्थिरमहाकारः (dhīrasthiramahākāraḥ) - whose form is profound, steady, and great; having a steadfast and mighty form

• विश्रान्तिम् (viśrāntim) - rest, tranquility, cessation

• गतमन्दरः (gatamandaraḥ) - who has surpassed Mandara (mountain); who has gone beyond Mandara

• परिपूर्णमनाः (paripūrṇamanāḥ) - whose mind is completely fulfilled; of completely fulfilled mind

• शुद्धः (śuddhaḥ) - pure, clean, clear

• क्षीरार्णवः (kṣīrārṇavaḥ) - the ocean of milk

• इव (iva) - like, as, as if

• आगतः (āgataḥ) - come, arrived, approached

Words meanings and morphology

धीरस्थिरमहाकारः (dhīrasthiramahākāraḥ) - whose form is profound, steady, and great; having a steadfast and mighty form

(adjective)

Nominative, masculine, singular of dhīrasthiramahākāra

dhīrasthiramahākāra - one having a profound, steady, and great form

Compound type : bahuvrīhi (dhīra+sthira+mahā+ākāra)

• dhīra – profound, resolute, steady, brave
  adjective
• sthira – firm, steady, immovable
  adjective
• mahā – great, mighty
  adjective
• ākāra – form, shape, appearance
  noun (masculine)

विश्रान्तिम् (viśrāntim) - rest, tranquility, cessation

(noun)

Accusative, feminine, singular of viśrānti

viśrānti - rest, repose, tranquility, cessation

Prefix: vi

Root: śram (class 4)

Note: Accusative indicating the object of 'gata' (gone to, attained).

गतमन्दरः (gatamandaraḥ) - who has surpassed Mandara (mountain); who has gone beyond Mandara

(adjective)

Nominative, masculine, singular of gatamandara

gatamandara - one who has gone beyond Mandara

Compound type : bahuvrīhi (gata+mandara)

• gata – gone, departed, reached, surpassed
  adjective
  Past Passive Participle
  Root: gam (class 1)
• mandara – Mandara mountain (used for churning the ocean)
  proper noun (masculine)

परिपूर्णमनाः (paripūrṇamanāḥ) - whose mind is completely fulfilled; of completely fulfilled mind

(adjective)

Nominative, masculine, singular of paripūrṇamanas

paripūrṇamanas - one whose mind is completely fulfilled

Compound type : bahuvrīhi (paripūrṇa+manas)

• paripūrṇa – completely full, fulfilled, perfect
  adjective
  Past Passive Participle
  Prefix: pari
  Root: pṛ (class 9)
• manas – mind, intellect, heart
  noun (neuter)
  Root: man (class 4)

शुद्धः (śuddhaḥ) - pure, clean, clear

(adjective)

Nominative, masculine, singular of śuddha

śuddha - pure, clean, undefiled, clear

Past Passive Participle

Root: śudh (class 4)

क्षीरार्णवः (kṣīrārṇavaḥ) - the ocean of milk

(noun)

Nominative, masculine, singular of kṣīrārṇava

kṣīrārṇava - ocean of milk (a mythical ocean)

Compound type : tatpuruṣa (kṣīra+arṇava)

• kṣīra – milk
  noun (neuter)
• arṇava – ocean, sea
  noun (masculine)

इव (iva) - like, as, as if

(indeclinable)

आगतः (āgataḥ) - come, arrived, approached

(adjective)

Nominative, masculine, singular of āgata

āgata - come, arrived, approached, happened

Past Passive Participle

Prefix: ā

Root: gam (class 1)