yogābhyāsakrameṇa ca pariśuddhataratamajñānotpādādapariśuddhajñānasaṃtānanivṛtter apavargaḥ prāpyata iti saphalo mokṣaprāptaye prayāsaḥ /
And through the gradual practice of yoga, increasingly pure cognitions arise while the stream of impure cognitions ceases, [thus] liberation is attained and the effort for achieving liberation becomes fruitful.