योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-44, verse-6

स्वचित्तभूमौ पतितं ध्यानबीजं महाधिया ।
सेकैरमीभिर्यत्नेन संसेक्तव्यमखेदिना ॥ ६ ॥

svacittabhūmau patitaṃ dhyānabījaṃ mahādhiyā ,
sekairamībhiryatnena saṃsektavyamakhedinā 6

6. svacittabhūmau patitam dhyānabījam mahādhiyā
sekaiḥ amībhiḥ yatnena saṃsektavyam akhedinā

6. svacittabhūmau patitam dhyānabījam mahādhiyā
akhedinā amībhiḥ sekaiḥ yatnena saṃsektavyam

6. The seed of meditation (dhyāna) that has fallen into one's own mind-field must be diligently nurtured by a person of great wisdom, with unwearying effort, using these [mentioned] methods of irrigation.

Words meanings summery:

• स्वचित्तभूमौ (svacittabhūmau) - in the field of one's own mind

• पतितम् (patitam) - fallen, dropped

• ध्यानबीजम् (dhyānabījam) - the seed of meditation

• महाधिया (mahādhiyā) - by great intelligence; by profound wisdom

• सेकैः (sekaiḥ) - by waterings, by irrigations, by sprinklings

• अमीभिः (amībhiḥ) - by these

• यत्नेन (yatnena) - by effort, with effort, diligently

• संसेक्तव्यम् (saṁsektavyam) - should be watered, should be irrigated, should be nurtured

• अखेदिना (akhedinā) - by one who is unwearied; by a diligent one

Words meanings and morphology

स्वचित्तभूमौ (svacittabhūmau) - in the field of one's own mind

(noun)

Locative, feminine, singular of svacittabhūmi

svacittabhūmi - one's own mind-field

Compound type : ṣaṣṭhī tatpuruṣa (sva+cittabhūmi)

• sva – own, self
  pronoun (neuter)
• cittabhūmi – mind-field
  noun (feminine)

पतितम् (patitam) - fallen, dropped

(participle)

Nominative, neuter, singular of patita

patita - fallen, descended, occurred

Past Passive Participle

Root: pat (class 1)

ध्यानबीजम् (dhyānabījam) - the seed of meditation

(noun)

Nominative, neuter, singular of dhyānabīja

dhyānabīja - seed of meditation

Compound type : ṣaṣṭhī tatpuruṣa (dhyāna+bīja)

• dhyāna – meditation, contemplation, deep thought
  noun (neuter)
  Root: dhyai (class 1)
• bīja – seed, germ, origin, cause
  noun (neuter)

महाधिया (mahādhiyā) - by great intelligence; by profound wisdom

(noun)

Instrumental, feminine, singular of mahādhī

mahādhī - great intelligence, profound wisdom

Compound type : karmadhāraya (mahā+dhī)

• mahā – great, large, mighty
  adjective (feminine)
• dhī – intellect, understanding, wisdom, thought
  noun (feminine)

सेकैः (sekaiḥ) - by waterings, by irrigations, by sprinklings

(noun)

Instrumental, masculine, plural of seka

seka - watering, sprinkling, irrigation

Root: sic (class 6)

अमीभिः (amībhiḥ) - by these

(pronoun)

Instrumental, masculine, plural of adas

adas - that, this (demonstrative pronoun, referring to something distant or pointed to)

यत्नेन (yatnena) - by effort, with effort, diligently

(noun)

Instrumental, masculine, singular of yatna

yatna - effort, exertion, endeavour, diligence

Root: yat (class 1)

संसेक्तव्यम् (saṁsektavyam) - should be watered, should be irrigated, should be nurtured

(participle)

Nominative, neuter, singular of saṃsektavya

saṁsektavya - to be watered, to be sprinkled, to be irrigated

Gerundive / Future Passive Participle

Prefix: sam

Root: sic (class 6)

अखेदिना (akhedinā) - by one who is unwearied; by a diligent one

(adjective)

Instrumental, masculine, singular of akhedin

akhedin - unwearied, untiring, diligent

Compound type : nañ-tatpuruṣa (a+khedin)

• a – not, un-
  prefix
• khedin – wearied, tired, discouraged
  adjective (masculine)
  Root: khid (class 1)