yadarthakriyākāri tat sat, yathā sattvenābhimataṃ rūpaṃ, a{na}rthakriyākāri cāsattvenābhimataṃ rūpam iti svabhāvahetuḥ /
What is capable of effective action is 'existent,' like the form that is accepted as 'existent,' and what is incapable of effective action is the form accepted as 'non-existent' - this is a reason based on essential nature.