Ātma-Saṃyama Yoga · Verse 15
युञ्जन्नेवं सदात्मानं योगी नियतमानसः | शान्तिं निर्वाणपरमां मत्संस्थामधिगच्छति
yuñjann evaṃ sadātmānaṃ yogī niyata-mānasaḥ | śāntiṃ nirvāṇa-paramāṃ mat-saṃsthām adhigacchati
Thus, always practicing yoga, with controlled mind, the yogi attains the supreme peace, nirvāṇa, which abides in Me.
The result of constant practice (sadā): śānti (peace) of nirvāṇa-paramā type — the highest, final liberation. Nirvāṇa means “extinction” of mental impressions (vāsanā).
Mat-saṃsthā is crucial: “which abides in Me / has its basis in Me.” Liberation is not an abstract impersonal void, but conscious rest in the Divine. This is one of the theological bases of Vaiṣṇavism.