kiṃtu nityasukhātmātmīyadarśanākṣiptaṃ sāśravavastuviṣayaṃ cetaso 'bhiṣvaṅgaṃ rāgamāhuḥ
Rather, they call "passion" that attachment of mind which relates to impure objects [and] which is indicated by the notion of permanent happiness, self, and what pertains to self.