ब्रह्म तं परादाद्योऽन्यत्रात्मनो ब्रह्मवेद क्षत्रं तं परादाद्योऽन्यत्रात्मनः क्षत्रंवेद लोकास्तं परादुर्योऽन्यत्रात्मनो लो-कान्वेद देवास्तं परादुर्योऽन्यत्रात्मनो दे-वान्वेद भूतानि तं परादुर्योऽन्यत्रात्मनोभूतानि वेद सर्वं तं परादाद्योऽन्यत्रात्म-नः सर्वं वेदेदं ब्रह्मेदं क्षत्रमिमे लोकाइमे देवा इमानि भूतानीद सर्वं यदय-मात्मा ॥ ६ ॥
In plain words
Treat brahminhood as something apart from the Self, and brahminhood turns its back on you. Treat kshatra-hood, the worlds, the gods, all living beings, or the whole of everything as something apart from the Self, and each one, in turn, abandons you. But this brahminhood, this kshatra-hood, these worlds, these gods, these beings, this everything — none of it is separate. It is all simply this Self.
Close to the Sanskrit
Brahminhood abandons him who knows brahminhood as other than the Self. Kshatra-hood abandons him who knows kshatra-hood as other than the Self. The worlds abandon him who knows the worlds as other than the Self. The gods abandon him who knows the gods as other than the Self. Beings abandon him who knows beings as other than the Self. Everything abandons him who knows everything as other than the Self. This brahminhood, this kshatra-hood, these worlds, these gods, these beings, this everything — [all this] is what this Self is.