योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-38, verse-21

सर्वभूतान्तरावस्थं सर्वं सर्वैकसाधनम् ।
इति संचिन्त्य देवेशमर्चयेद्विधिवत्ततः ॥ २१ ॥

sarvabhūtāntarāvasthaṃ sarvaṃ sarvaikasādhanam ,
iti saṃcintya deveśamarcayedvidhivattataḥ 21

21. sarvabhūtāntarāvastham sarvam sarvaikasādhanam
iti sañcintya deveśam arcayet vidhivat tataḥ

21. iti sarvabhūtāntarāvastham sarvam sarvaikasādhanam
deveśam sañcintya tataḥ vidhivat arcayet

21. Having thus contemplated the Lord of gods as dwelling within all beings, as the All, and as the sole means for everything, one should then worship him according to the prescribed rites.

Words meanings summery:

• सर्वभूतान्तरावस्थम् (sarvabhūtāntarāvastham) - situated within all living entities (dwelling within all beings)

• सर्वम् (sarvam) - the All, the complete reality (all, everything, the whole)

• सर्वैकसाधनम् (sarvaikasādhanam) - the one and only means for achieving all things (the sole means for everything)

• इति (iti) - thus (referring to the preceding descriptions) (thus, in this manner, so)

• सञ्चिन्त्य (sañcintya) - having thoroughly contemplated (having contemplated, having considered well)

• देवेशम् (deveśam) - the Lord of all deities (lord of gods)

• अर्चयेत् (arcayet) - one should perform worship (one should worship, he should worship)

• विधिवत् (vidhivat) - in accordance with established ritual procedures (according to rule, properly, ritually)

• ततः (tataḥ) - subsequently, after that (contemplation) (thereafter, then, from that)

Words meanings and morphology

सर्वभूतान्तरावस्थम् (sarvabhūtāntarāvastham) - situated within all living entities (dwelling within all beings)

(adjective)

Accusative, masculine, singular of sarvabhūtāntarāvastha

sarvabhūtāntarāvastha - dwelling within all beings

Compound type : tatpuruṣa (sarvabhūta+antara+avastha)

• sarva – all, every
  adjective (masculine)
• bhūta – being, creature, element, past
  noun (neuter)
  Past Passive Participle
  from root bhū (to be)
  Root: bhū (class 1)
• antara – inner, internal, within
  adjective (neuter)
• avastha – situated, dwelling, existing
  adjective (masculine)
  from ava-sthā (to stand, be situated)
  Prefix: ava
  Root: sthā (class 1)

Note: This adjective describes the 'deveśa' (Lord of gods).

सर्वम् (sarvam) - the All, the complete reality (all, everything, the whole)

(pronoun)

Accusative, masculine, singular of sarva

sarva - all, every, whole

Note: Used substantively here, referring to the entirety of existence.

सर्वैकसाधनम् (sarvaikasādhanam) - the one and only means for achieving all things (the sole means for everything)

(noun)

Accusative, masculine, singular of sarvaikasādhana

sarvaikasādhana - the sole means for everything

Compound type : tatpuruṣa (sarva+eka+sādhana)

• sarva – all, every
  adjective (masculine)
• eka – one, sole, unique
  adjective (masculine)
• sādhana – means, instrument, accomplishment
  noun (neuter)
  from root sādh (to accomplish) + -ana suffix
  Root: sādh (class 5)

Note: This noun functions as an epithet in the accusative case, modifying the object of worship.

इति (iti) - thus (referring to the preceding descriptions) (thus, in this manner, so)

(indeclinable)

Note: Indicates the preceding description is being concluded or referred to.

सञ्चिन्त्य (sañcintya) - having thoroughly contemplated (having contemplated, having considered well)

(indeclinable)

absolutive/gerund

from sam-cit (to think) + -ya suffix

Prefix: sam

Root: cit (class 10)

Note: An absolutive indicating an action completed before the main verb 'arcayet'.

देवेशम् (deveśam) - the Lord of all deities (lord of gods)

(noun)

Accusative, masculine, singular of deveśa

deveśa - lord of gods

Compound type : tatpuruṣa (deva+īśa)

• deva – god, deity
  noun (masculine)
• īśa – lord, master, ruler
  noun (masculine)

Note: Object of the verb 'sañcintya' and 'arcayet'.

अर्चयेत् (arcayet) - one should perform worship (one should worship, he should worship)

(verb)

3rd person , singular, active, optative (vidhiliṅ) of arc

Root: arc (class 1)

Note: Indicates a recommendation or injunction to worship.

विधिवत् (vidhivat) - in accordance with established ritual procedures (according to rule, properly, ritually)

(indeclinable)

from vidhi (rule, ordinance) + -vat suffix

Note: Modifies the verb 'arcayet', specifying the manner of worship.

ततः (tataḥ) - subsequently, after that (contemplation) (thereafter, then, from that)

(indeclinable)

from tad (that) + -tas suffix

Note: Indicates sequential action.