यो दिक्षु तिष्ठन्दिग्भ्योऽन्तरो यं दिशोन विदुर्यस्य दिशः शरीरं यो दिशोऽन्तरोयमयत्येष त आत्मान्तर्याम्यमृतः ॥ १० ॥
In plain words
The one who lives inside every direction, yet is nothing the directions can claim as their own, whom the quarters of space never know, whose body they are, who governs them from within -- that is your self, the ruler seated inside everything, and death does not touch him.
Close to the Sanskrit
He who, dwelling in the quarters, is other than the quarters, whom the quarters do not know, whose body the quarters are, who controls the quarters from within -- he is your self, the inner controller, immortal.