Mantra 7

यद्वै तद्ब्रह्मेतीदं वाव तद्योयं बहिर्धा पुरुषादाकाशो यो वै स बहिर्धा पुरुषादाकाशः ॥ ३.१२.७ ॥

In plain words

What is called Brahman is the space outside a person; and the space that is outside a person