एतद्दृश्यं नामरूपात्मकं यो -ऽधिष्ठानं तद्ब्रह्म सत्यं सदेति ।गच्छंस्तिष्टन्वा शयानोऽपि नित्यंकुर्याद्विद्वान्बाह्यदृश्यानुविद्धम् ॥ ८९१ ॥
In plain words
Whether walking, standing, or lying down, the wise person should constantly see this perceived world of name and form as permeated by its true and existent substrate, Brahman.
Close to the Sanskrit
This perceived world of name and form—who knows it as the substrate, that Brahman, the true, the existent—walking, standing, or lying down, constantly should the wise one maintain it.