युञ्जन्नेवं सदात्मानं योगी नियतमानसः ।शान्तिं निर्वाणपरमां मत्संस्थामधिगच्छति ॥
yuñjannevaṃ sadātmānaṃ yogī niyatamānasaḥśāntiṃ nirvāṇaparamāṃ matsaṃsthāmadhigacchati
Thus always putting himself in Yoga by control of his mind, the Yogin attains to the supreme peace of Nirvana which has its foundation in Me.
Gītā 6·15In this process the Yogin is directed to practise continually union with the Self so that that may become his normal consciousness. …the whole controlled mentality must be devoted and turned to the Divine so that the lower action of the consciousness shall be merged in the higher peace. For the object to be attained is the still peace of Nirvana.