Verse 51

स्वाद्यस्वादकसंत्यक्तं स्वाद्यस्वादकमध्यगम् ।स्वादनं केवलं ध्यायन्नित्यमात्ममयो भव

In plain words

Meditating always upon the mere tasting -- free of both the tasted and the taster, yet standing in the very midst between the tasted and the taster -- become, forever, made wholly of ātman.