। ॥ ४२४ ॥
In plain words
Seer, hearer, speaker, doer, enjoyer — every one of these is the ego. The ātman itself simply witnesses these changes, and nothing sticks to it.
Close to the Sanskrit
The ego becomes the seer, the hearer, the speaker, the doer, the enjoyer. The Self itself, the witness of these modifications, is untouched indeed.