ब्रह्म चिद्ब्रह्म च मनो ब्रह्म विज्ञानवस्तु च ।ब्रह्मार्थो ब्रह्म शब्दश्च ब्रह्म चिद्ब्रह्म धातवः
In plain words
Brahman is cit; Brahman is mind; Brahman is the very substance of cognition. Brahman is meaning, Brahman is word, Brahman is cit, Brahman is the dhātus.