yathā bhavatsādhanasannidhānabhāvisādhyarthaviṣayaṃ jñānam tathā ca rājīvādayo bhāvā iti svabhāvahetuḥ //
Just as [in the case of] your cognition of the probandum which appears only when the probans is present, so also [in the case of] things like lotus filaments - this is a reason based on essential nature