ब्रह्मैवेदममृतं पुरस्ताद्ब्रह्म पश्चाद्ब्रह्म दक्षिणतश्चोत्तरेण ।अधश्चोर्ध्वं च प्रसृतं ब्रह्मैवेदं विश्वमिदं वरिष्ठम् ॥ ११ ॥
In plain words
This is Brahman alone, this Amṛta: Brahman in front, Brahman behind, Brahman to the south and north. Spread below and above, Brahman alone is this whole universe, the highest.