yadyekadā tadā rūpaṃ sarvadaiva hi tadbhavet // tasya yogyamayogyaṃ vā rūpaṃ yatprakṛtisthitam /
whichever [capacity] it has at one time, that form must remain forever. Its natural form, whether capable or incapable [of producing cognition], remains fixed in its original state.