Śvetāśvatara Upaniṣad · 4..19

तदेतद्ब्रह्मापूर्वमपरमनन्तं बाह्यं व्याप्यं नित्यं विभुं सूक्ष्मं सन्मात्रं सद्ब्रह्म

tadetadbrahmāpūrvamaparamanantaṃ bāhyaṃ vyāpyaṃ nityaṃ vibhuṃ sūkṣmaṃ sanmātraṃ sadbrahma

That is this Brahman, without before or after, infinite, external, omnipenetrating, eternal, omnipresent, subtle, essence of being, true Brahman.

Sixth repetition, extending the liturgy beyond what seems reasonable. But in mystical tradition, repetition has a purpose: it carries the mind beyond conceptual meaning toward direct presence. In our yoga practice, when these words have been repeated sufficiently, they cease to be information and become mantra —vibrations that restructure consciousness. The sadbrahma is not something we think but something we resonate.