योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-22, verse-52

साधो हृदयसौषिर्यमसौषिर्यमिवास्तु ते ।
अचित्त्ववपुषोऽचित्त्वादुपलस्येव राघव ॥ ५२ ॥

sādho hṛdayasauṣiryamasauṣiryamivāstu te ,
acittvavapuṣo'cittvādupalasyeva rāghava 52

52. sādho hṛdayasauṣiryam asauṣiryam iva astu te
acittvavapuṣaḥ acittvāt upalasya iva rāghava

52. sādho rāghava te hṛdayasauṣiryam asauṣiryam iva
astu acittvavapuṣaḥ upalasya acittvāt iva (astu)

52. O sage (sādho), let the inner spaciousness of your heart (hṛdayasauṣiryam) become like a firm, unyielding solidity (asauṣiryam). O Rāghava, let this be like a stone (upala) which, having an inert body (acittvapuṣa), is naturally without consciousness (acittva).

Words meanings summery:

• साधो (sādho) - O sage (O sage, O good one, O virtuous one)

• हृदयसौषिर्यम् (hṛdayasauṣiryam) - the inner spaciousness of your heart (hollowness of heart, emptiness of heart, spaciousness of heart)

• असौषिर्यम् (asauṣiryam) - a firm, unyielding solidity (non-hollowness, solidity, compactness)

• इव (iva) - like, as if (like, as if, as)

• अस्तु (astu) - let it be, may it be

• ते (te) - your (to you, your)

• अचित्त्ववपुषः (acittvavapuṣaḥ) - having an inert form (of one whose body is non-conscious, of one with an inert form)

• अचित्त्वात् (acittvāt) - naturally without consciousness (from non-consciousness, due to inertness, because of lack of consciousness)

• उपलस्य (upalasya) - of a stone (of a stone, of a rock)

• इव (iva) - like, as if (like, as if, as)

• राघव (rāghava) - O Rāghava (Rāma) (descendant of Raghu, O Rāma)

Words meanings and morphology

साधो (sādho) - O sage (O sage, O good one, O virtuous one)

(noun)

Vocative, masculine, singular of sādhu

sādhu - good, virtuous, righteous, holy man, sage

From root sādh (to accomplish).

Root: sādh (class 5)

Note: Addressed to Rāma.

हृदयसौषिर्यम् (hṛdayasauṣiryam) - the inner spaciousness of your heart (hollowness of heart, emptiness of heart, spaciousness of heart)

(noun)

Nominative, neuter, singular of hṛdayasauṣirya

hṛdayasauṣirya - hollowness of heart, emptiness of heart, porosity of heart

Compound of hṛdaya (heart) and sauṣirya (hollowness).

Compound type : tatpurusha (hṛdaya+sauṣirya)

• hṛdaya – heart, mind, core
  noun (neuter)
  Root: hṛ
• sauṣirya – hollowness, porosity, spaciousness, emptiness
  noun (neuter)
  From suṣira (hollow) with ya suffix.

Note: Subject of astu.

असौषिर्यम् (asauṣiryam) - a firm, unyielding solidity (non-hollowness, solidity, compactness)

(noun)

Nominative, neuter, singular of asauṣirya

asauṣirya - non-hollowness, solidity, compactness

a (not) + sauṣirya (hollowness)

Compound type : nañ-tatpuruṣa (a+sauṣirya)

• a – not, non-, un-
  prefix
  Negative prefix.
• sauṣirya – hollowness, porosity, spaciousness, emptiness
  noun (neuter)
  From suṣira (hollow) with ya suffix.

Note: Predicate nominative for hṛdayasauṣiryam.

इव (iva) - like, as if (like, as if, as)

(indeclinable)

अस्तु (astu) - let it be, may it be

(verb)

3rd person , singular, active, imperative (loṭ) of as

imperative active

Root: as (class 2)

ते (te) - your (to you, your)

(pronoun)

Genitive, singular of tvad

tvad - you

Note: Possessive, "your heart".

अचित्त्ववपुषः (acittvavapuṣaḥ) - having an inert form (of one whose body is non-conscious, of one with an inert form)

(adjective)

Genitive, masculine, singular of acittvavapuṣa

acittvavapuṣa - having a body/form that is non-conscious or inert

Compound of a (not), cittva (consciousness), vapus (body, form).

Compound type : bahuvrihi (a+cittva+vapus)

• a – not, non-, un-
  prefix
  Negative prefix.
• cittva – consciousness, intelligence (abstract noun)
  noun (neuter)
  From cit (consciousness) + tva suffix.
  Root: cit (class 1)
• vapus – body, form, figure
  noun (neuter)

Note: Qualifies upalasya.

अचित्त्वात् (acittvāt) - naturally without consciousness (from non-consciousness, due to inertness, because of lack of consciousness)

(noun)

Ablative, neuter, singular of acittvatva

acittvatva - state of being non-conscious, inertness, lack of consciousness

Compound of a (not), cittva (consciousness), tva (suffix for abstract nouns).

Compound type : nañ-tatpuruṣa (a+cittva+tva)

• a – not, non-, un-
  prefix
  Negative prefix.
• cittva – consciousness, intelligence (abstract noun)
  noun (neuter)
  From cit (consciousness) + tva suffix.
  Root: cit (class 1)
• tva – state of being, -ness
  suffix (neuter)
  Used to form abstract nouns from adjectives or nouns.

Note: Expresses cause or reason.

उपलस्य (upalasya) - of a stone (of a stone, of a rock)

(noun)

Genitive, masculine, singular of upala

upala - stone, rock, gem

Note: Connected to acittvavapuṣaḥ and acittvāt.

इव (iva) - like, as if (like, as if, as)

(indeclinable)

राघव (rāghava) - O Rāghava (Rāma) (descendant of Raghu, O Rāma)

(proper noun)

Vocative, masculine, singular of rāghava

rāghava - descendant of Raghu, name of Rāma

From raghu (name of an ancient king) + a (patronymic suffix).