That is this immortal Brahman, that is this supreme Brahman. That Brahman, that supreme Brahman —knowing That, one becomes Brahman, without ego, without desires, enjoys universal joys, thus known.

The akṣara (immortal/immutable) is Brahman, not the kṣara (the mutable). Knowing this is brahmā bhavati —becoming Brahman, not acquiring something new but recognizing what has always been. The result is nirātma (without ego/finite self) and nirākāṅkṣa (without desires), and yet aśnute sārvabhaumān sukhān —enjoys joys that are universal, not limited by body or mind. In our yoga practice, this is the resolved paradox: by renouncing limited ego, we gain unlimited joy; by releasing personal desires, we receive cosmic satisfaction.