< 4-3 >
nimittam-aprayojakaṃ prakṛtīnāṃ varaṇa-bhedaḥ tu tataḥ kṣetrikavat
निमित्तमप्रयोजकं प्रकृतीनांवरणभेदस्तु ततः क्षेत्रिकवत्
The instrumental cause is not the initiator of the process of matter, but divides the surrounding, hence like a farmer
nimitta - instrumental cause
aprayojaka - not the initiator
prakṛti - the original producer of the material world; nature or process of matter; nature, character, constitution, temper, disposition
varaṇa - surrounding
bheda - divide, pierce
tu - moreover
tatas - hence, from that
kṣetrika - like a farmer
Commentary by TKV Desikachar:
“Krishnamacharya’s teaching is a Nimitta Kāraṇa – Where you discover your own way.”