अहमेव परं ब्रह्म न चाहं ब्रह्मणः पृथक् ।इत्येवं समुपासीत ब्राह्मणो ब्रह्मणि स्थितः ॥ ३ ॥
In plain words
I am the supreme Brahman, I myself — and there is no gap at all between me and Brahman. Hold to that, just that: the brāhmaṇa who stands in Brahman contemplates in this way.
Close to the Sanskrit
I alone am the supreme Brahman, and I am not separate from Brahman — thus, in exactly this way, let the brāhmaṇa, established in Brahman, contemplate.