US-P18.220ab ।US-P18.220cd ॥
In plain words
Take the word 'you' down to what it really names — the Self that faces inward — and see that as the Self, right here in yourself. After that you see the Self the whole sentence means: everything, and nothing but itself.
Close to the Sanskrit
The meaning of the word 'you' — the inward-facing Self — one should see as the Self, in the self. Thereafter one sees the Self, the meaning of the sentence, as all, alone.