महाभारतः mahābhārataḥ - book-13, chapter-140, verse-16

आदित्याः सत्रमासन्त सरो वै मानसं प्रति ।
वसिष्ठं मनसा गत्वा श्रुत्वा तत्रास्य गोचरम् ॥१६॥

16. ādityāḥ satramāsanta saro vai mānasaṁ prati ,
vasiṣṭhaṁ manasā gatvā śrutvā tatrāsya gocaram.

16. ādityāḥ satram āsanta saraḥ vai mānasam prati
vasiṣṭham manasā gatvā śrutvā tatra asya gocaram

16. आदित्याः (ādityāḥ) मानसम् (mānasam) सरः (saraḥ) प्रति (prati) वै (vai) सत्रम् (satram) आसन्त (āsanta).
मनसा (manasā) वसिष्ठम् (vasiṣṭham) गत्वा (gatvā) तत्र (tatra) अस्य (asya) गोचरम् (gocaram) श्रुत्वा (śrutvā).
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16. The Adityas were indeed performing a great Vedic ritual (satra) near Lake Manasa. Having mentally approached Vasiṣṭha and heard of his whereabouts there...

Words meanings summery:

• आदित्याः (ādityāḥ) - the Adityas (a class of gods)

• सत्रम् (satram) - a long and elaborate Vedic ritual (yajña) (a Vedic ritual, a sacrificial session)

• आसन्त (āsanta) - they were, they sat, they performed

• सरः (saraḥ) - lake, pond

• वै (vai) - indeed, verily, certainly (emphatic particle)

• मानसम् (mānasam) - Lake Manasa, a sacred lake in the Himalayas (Manasa (proper name of a lake))

• प्रति (prati) - towards, near, against, regarding

• वसिष्ठम् (vasiṣṭham) - to Vasiṣṭha

• मनसा (manasā) - by mind, mentally

• गत्वा (gatvā) - having gone, having approached

• श्रुत्वा (śrutvā) - having heard, having listened

• तत्र (tatra) - there, in that place

• अस्य (asya) - his, of this

• गोचरम् (gocaram) - Vasiṣṭha's whereabouts or range of activity (range, sphere, scope, perception, whereabouts)

Words meanings and morphology

आदित्याः (ādityāḥ) - the Adityas (a class of gods)

(proper noun)

Nominative, masculine, plural of āditya

āditya - Aditya (a class of Vedic deities, sons of Aditi), the sun

Derived from Aditi

सत्रम् (satram) - a long and elaborate Vedic ritual (yajña) (a Vedic ritual, a sacrificial session)

(noun)

Accusative, neuter, singular of satra

satra - a long Vedic ritual, a sacrificial session, a forest, an assembly

आसन्त (āsanta) - they were, they sat, they performed

(verb)

3rd person , plural, active, imperfect (laṅ) of ās

Imperfect Active Indicative

3rd person plural, imperfect tense, active voice, ātmanepada

Root: ās (class 2)

सरः (saraḥ) - lake, pond

(noun)

Nominative, neuter, singular of saras

saras - lake, pond, water

वै (vai) - indeed, verily, certainly (emphatic particle)

(indeclinable)

मानसम् (mānasam) - Lake Manasa, a sacred lake in the Himalayas (Manasa (proper name of a lake))

(proper noun)

Accusative, neuter, singular of mānasa

mānasa - Manasa (name of a sacred lake), mental, belonging to the mind

प्रति (prati) - towards, near, against, regarding

(indeclinable)

Preposition governing accusative

वसिष्ठम् (vasiṣṭham) - to Vasiṣṭha

(proper noun)

Accusative, masculine, singular of Vasiṣṭha

Vasiṣṭha - Name of a celebrated Vedic sage

मनसा (manasā) - by mind, mentally

(noun)

Instrumental, neuter, singular of manas

manas - mind, intellect, consciousness

गत्वा (gatvā) - having gone, having approached

(indeclinable)

Absolutive/Gerund

Indeclinable participle, 'having gone'

Root: gam (class 1)

श्रुत्वा (śrutvā) - having heard, having listened

(indeclinable)

Absolutive/Gerund

Indeclinable participle, 'having heard'

Root: śru (class 5)

तत्र (tatra) - there, in that place

(indeclinable)

अस्य (asya) - his, of this

(pronoun)

Genitive, masculine, singular of idam

idam - this, he, she, it

गोचरम् (gocaram) - Vasiṣṭha's whereabouts or range of activity (range, sphere, scope, perception, whereabouts)

(noun)

Accusative, masculine, singular of gocara

gocara - range, sphere, scope, object of sense, whereabouts

Compound of go (sense, cattle) + cara (moving, walking), literally 'range of cattle'

Compound type : Tatpuruṣa (go+cara)

• go – cow, earth, ray, sense
  noun (masculine)
• cara – moving, walking, going, spy
  adjective
  Agent noun/adjective from root car
  Root: car (class 1)