योगवासिष्ठः yogavāsiṣṭhaḥ - book-2, chapter-16, verse-23

सत्समागमसंतोषविचाराः सुविचारितम् ।
प्रवर्तन्ते शमस्वच्छे वाहनानीव सागरे ॥ २३ ॥

satsamāgamasaṃtoṣavicārāḥ suvicāritam ,
pravartante śamasvacche vāhanānīva sāgare 23

23. satsamāgamasantoṣavicārāḥ suvicāritam
pravartante śamasvacche vāhanāni iva sāgare

23. suvicāritam satsamāgamasantoṣavicārāḥ
śamasvacche sāgare vāhanāni iva pravartante

23. Good company, contentment, and spiritual inquiry, when well-contemplated, proceed like vehicles in the ocean of pure tranquility.

Words meanings summery:

• सत्समागमसन्तोषविचाराः (satsamāgamasantoṣavicārāḥ) - the practices of good company, contentment, and spiritual inquiry (good company, contentment, and inquiry)

• सुविचारितम् (suvicāritam) - well-considered, thoroughly contemplated, properly investigated

• प्रवर्तन्ते (pravartante) - they proceed, they flow, they manifest, they operate

• शमस्वच्छे (śamasvacche) - in the pure tranquility (in the pure tranquility, in the tranquility that is pure)

• वाहनानि (vāhanāni) - vehicles, conveyances

• इव (iva) - like, as, as if

• सागरे (sāgare) - in the ocean (of tranquility) (in the ocean)

Words meanings and morphology

सत्समागमसन्तोषविचाराः (satsamāgamasantoṣavicārāḥ) - the practices of good company, contentment, and spiritual inquiry (good company, contentment, and inquiry)

(noun)

Nominative, masculine, plural of satsamāgamasantoṣavicāra

satsamāgamasantoṣavicāra - good company, contentment, inquiry

Compound listing three spiritual practices.

Compound type : Dvanda (satsamāgama+santoṣa+vicāra)

• satsamāgama – good company, association with the good/wise
  noun (masculine)
  Compound of sat (good/true) + samāgama (meeting/association). Also known as satsaṅga.
• santoṣa – contentment, satisfaction
  noun (masculine)
  Derived from root tuṣ (to be pleased) with prefix sam (completely).
  Prefix: sam
  Root: tuṣ (class 4)
• vicāra – inquiry, investigation, deliberation, spiritual discrimination
  noun (masculine)
  Derived from root car (to move, to go) with prefix vi (apart, distinctly) and ā (towards).
  Prefixes: vi+ā
  Root: car (class 1)

Note: Subject of 'pravartante'.

सुविचारितम् (suvicāritam) - well-considered, thoroughly contemplated, properly investigated

(adjective)

neuter, singular of suvicārita

suvicārita - well-considered, thoroughly investigated, properly discriminated

Past Passive Participle

Compound of su (well) + vicārita (considered/investigated, PPP of vicār).

Compound type : Tatpurusha (su+vicārita)

• su – good, well, excellent
  indeclinable/prefix
• vicārita – considered, investigated, discerned
  adjective (masculine/feminine/neuter)
  Past Passive Participle
  PPP of root car (to move) with prefixes vi and ā.
  Prefixes: vi+ā
  Root: car (class 1)

Note: Modifies the action of 'pravartante'.

प्रवर्तन्ते (pravartante) - they proceed, they flow, they manifest, they operate

(verb)

3rd person , plural, middle, present (laṭ) of pravṛt

Derived from root vṛt (to turn, exist) with prefix pra (forth, forward).

Prefix: pra

Root: vṛt (class 1)

Note: The verbal form is Atmanepada (middle voice).

शमस्वच्छे (śamasvacche) - in the pure tranquility (in the pure tranquility, in the tranquility that is pure)

(adjective)

Locative, masculine, singular of śamasvaccha

śamasvaccha - pure tranquility/calmness

Compound where śama (calmness) qualifies svaccha (pure).

Compound type : Tatpurusha/Karmadhāraya (śama+svaccha)

• śama – tranquility, calm, quiet, self-control
  noun (masculine)
  Derived from root śam (to be quiet, calm).
  Root: śam (class 4)
• svaccha – pure, clean, clear, spotless
  adjective (masculine/feminine/neuter)
  Compound of su (good) + accha (clear, bright).

Note: Modifies 'sāgare'.

वाहनानि (vāhanāni) - vehicles, conveyances

(noun)

Nominative, neuter, plural of vāhana

vāhana - vehicle, conveyance, carrier

Derived from root vah (to carry, convey).

Root: vah (class 1)

Note: Used in the simile.

इव (iva) - like, as, as if

(indeclinable)

सागरे (sāgare) - in the ocean (of tranquility) (in the ocean)

(noun)

Locative, masculine, singular of sāgara

sāgara - ocean, sea

Note: Location where the practices flow.